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Svante Arrhenius as a prophet global warming
8 pages (2000 words)
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...Arrhenius, the Swedish climate scientist, published an article in the journal Philosophical Transactions. The scientist argued that doubling of carbon dioxide concentration in the atmosphere would lead to increase of the global surface temperature by approximately 9F (Arrhenius, 1896). Immediately after publication of the article Arrhenius faced strong opposition: his arguments and predictions were dismissed as faulty, and it was not until the last decades that the climate change finally drew attention of the scientific community and public. Starting from the early 1980s, a number of scientists from different countries across the globe have been... GLOBAL WARMING 2006 INTRODUCTION Back in 1896, Svante...
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Chemistry Tasks
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...Arrhenius base is the substance that when added to water increases... Chem 115 Module 3 The strength of the acid depends on the Ka values of the acid. Acids with more stable conjugate bases have higher strength. So the order of the acidic strength would be H2SO4 > HClO3 > HClO2 > H2S > H2O 2. A Bronsted base is the substance that has the ability to accept protons. Here PF5 does not have the ability to accept proton or protons. Therefore PF5 is not a Bronsted base. 3. Considering the equation: HA H+ + A- and applying the acidic equilibrium equation: Ka=x20.02-x=3.0*10-8 On solving we get [H+] = x = 2.4x10-5 We know; pH = -log [H+] = -log (2.4x10-5) = 4.61 4. The value of the equilibrium constant is only d...
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Buffer, acid and base
4 pages (1000 words)
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...Arrhenius definition for acids states that acids produce hydrogen ions in aqueous solutions or when they are added to water. Acids release Hydrogen ion (H+). An acid reacts with magnesium, zinc or aluminum and forms hydrogen (H2(g... What is ph and pOH and the difference between the two: pH is a term used in science that means Potential of Hydrogen that helps to measure theacidity and basicity of an aqueous measure. pH is a measure of the hydrogen ion concentration in a solution. The more the H+ ions the solution has, the lower the pH which means the solution will be more acidic. The solutions whose pH is greater than 7 are alkaline or basic in nature while the solutions having less than 7 pH are acidic...
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ASSIGNMENT IN CHEMISTRY
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...Arrhenius definition of acids and bases. Arrhenius defined acids as compounds that contain hydrogen and can dissolve in water to release hydrogen ions into solution. For example, hydrochloric acid (HCl) dissolves in water as follows: HCl H2O H+(aq) + Cl-(aq) Arrhenius defined bases as substances that dissolve in water to release hydroxide ions (OH-) into solution. For example, a typical base according to the Arrhenius definition is sodium hydroxide (NaOH): NaOH Na+(aq) + OH-(aq) b. Give the Bronsted - Lowry definitions of acids... ASSIGNMENT IN CHEMISTRY The following is a reversible reaction. CaCO3(s) CaO(s) +CO2(g) a. Write the reaction equation of the forward reaction: CaCO3 (s) ...
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What's Dissolved in the Water
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...Arrhenius proved premise of 1884, salts... Whats Dissolved in the Water? Qn 1. NaCl(aq) + AgNO3(aq) AgCl(s) + NaNO3(aq) Na+ (aq) + Cl-(aq) + Ag+ +NO3-(aq) AgCl(s) + Na+ + NO3-(aq) Cl-(aq) + Ag+(aq) AgCl(s) 2. NaI(aq) + AgNO3(aq) AgI(s) + NaNO3(aq) Na+ (aq) + I-(aq) + Ag+(aq) + NO3-(aq) AgI(s) + Na+ (aq) +NO3-(aq) I-(aq) + Ag+ (aq) AgI(s) 3. AgNO3(aq) + HCL(aq) HNO3(aq) + AgCL(s) Ag+(aq) + NO3-(aq) + H+(aq) + CL-(aq) H+(aq) + NO3-(aq) + AgCL(s) Ag+(aq) + CL-(aq) AgCL(s) 4. KOH(aq) + AgNO3(aq) KNO3(aq) + AgOH(s) K+(aq) + OH(aq) + Ag+(aq) + NO3-(aq) K+(aq) + NO3-(aq) + AgOH(s) OH(aq) + Ag+(...
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Thin Ice by Mark Bowen
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...Arrhenius, Tyndall, and Keeling being some of them. As a layman wanting to get a clear understanding of subjects like the greenhouse effect, climate change, measurement of carbon dioxide concentrations, etc. I thought that this book would be just right. I also wanted to get insights from the brilliant personalities mentioned above. Also since Mark Bowen has a PhD from MIT and is no newcomer... Thin Ice by Mark Bowen Order No.253403 November ‘08 Thin Ice by Mark Bowen Thin Ice by Mark Bowen was published in the year 2005 by Henry Holt and Company. This book vividly describes the work of geophycists under extreme conditions. Its focus is on important peronalities and experts in the science of climate,...
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Kinetics of Drug Degradation and the Effect of pH on Drug Stability
5 pages (1250 words)
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...Arrhenius equation, which relates temperature to the rate constant. In general, temperature is considered to have significant impact in the dynamics of processes that go into equilibrium. This is also an offshoot of the general observation that where reactions occur at higher temperatures, those reactions proceed at a faster rate in comparison to the same reactions that occur in lower temperatures. The way drugs react to changes in temperature... Kinetics of Drug Degradation and the Effect of pH on Drug Stability Table of Contents I. Introduction 3 II. Methods 3 Flask 2 4 III. Results 4 A. Tables 4 B. Concentrations from Absorbance – Calculations 5 C. Graph One 5 D. Rates of Reaction- Calculations 6 E. Gr...
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Scientific aspects of climate change
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...Arrhenius, Fourier and Tyndall. Arrhenius (1896) estimated that a doubling of CO2 would cause 4.90C -6.10C increase in continental surface are temperature depending upon latitude and reason, which is at the upper end of current predictions (1.40C-5.8oC under the Third AR). Overall the variability in climate and precipitation predicted from simulation models at the regional level is for grater than that at the global scale. In their review for the second AR, Kattenberg et al (1996: 344) concluded: considering all models, at the 104-106 Km2 scale, temperature changes due to CO2 doubling varied between +0.60C and +70C and precipitation changes varied between -35% and +50... Article The article "Scientific...
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Article Critique
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...Arrhenius, Fourier and Tyndall. Arrhenius (1896) estimated that a doubling of CO2 would cause 4.90C -6.10C increase in continental surface are temperature depending upon latitude and reason, which is at the upper end of current predictions (1.40C-5.8oC under the Third AR). Overall the variability in climate and precipitation predicted from simulation models at the regional level is for grater than that at the global scale. In their review for the second AR, Kattenberg et al (1996: 344) concluded: considering all models, at the 104-106 Km2 scale, temperature changes due to CO2 doubling varied between +0.60C and +70C and precipitation changes varied between -35% and +50... Article The article “Scientific...
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Climate change and Emission Trading
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...Arrhenius, Fourier & Tyndall. Arrhenius (1896) estimated that a doubling of CO2 would cause 4.9-6.1o C increase in continental surface air temperature depending upon latitude and season, which is at the upper end of current predictions (1.4oC-5.8oC) under the third AR). The greater controversy surrounds exactly how human induced climate change will be realized at the regional level and across time, who will suffer and what should be done. Governments in many developing countries and at least two industrialized... Climate change & Emission Trading The Green House Gases (GHG) Effect is one of the better understood features of the atmosphere; the science havingbeen established in the 1800's by the likes of...
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Analysis of community practice
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...Arrhenius (2006, 33) also points out the consultative nature of the dialogical model of community development as a demerit, on the account that it heavily co-occurs with plurality of views. While plurality of views comes with its advantages, it sometimes carries with it, the failure and difficulty in reaching an agreement. Likewise, plurality of views may not necessarily bring with it, the realisation... Dialogical Approach to Community Development Number Department An Overview of a Community Development, Based on Dialogical Approach A dialogical approach to community development refers to a model that relies on egalitarian dialogue wherein different people provide arguments which are premised upon the...
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Utilitarianism. Evaluation of the Objection
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...Arrhenius. Jesper, Ryberg, and Torbjorn, Tannsjo. Stanford Encyclopedia of Philosophy: The Repugnant Conclusion, 2004. Retrieved on 5th Sept, 2011 from http://plato.stanford.edu/entries/repugnant-conclusion/.... Utilitarianism Introduction Utilitarianism is a theory of ethics that holds that: the best course of action maximizes the greatest overall “good” for the largest number of individuals. Therefore, it is a form of consequentialism, which states that; the moral action’s worth is usually determined by the results of its outcome. According to Bentham Jeremy, utilitarianism is the principle of the greatest felicity or happiness. Utilitarianism is normally characterized as a reductionist and...
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What Duration of Ultraviolet Exposure Kills Bacteria
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...Arrhenius, which was earlier proposed to be describing temperature reliance of precise reaction speed in chemical reaction, seems not to be properly describing the effects of temperature on the growth of bacterial. This has lead to modification of the law by replacing the speed of reaction constant by the growth rate constant. The modification proved not to be ideal since the graph s obtained after plotting the logarithm growth rate constant against reciprocal absolute temperature results into curves instead of a straight line. It is good to note that the same relationship is applicable to the breakdown of nucleotide... ? Duration of Ultraviolet Exposure that Kills Bacteria Introduction The law of...
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Preservation of Organs for Transplant
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...Arrhenius equation, and when cells cool, the utilization of ATP utilization drops, because of sodium pump function. Sodiumpump regulates and reduces intracellular sodium under normothermic conditions, however, when the pump speed falls during hypothermia, the intracellular sodium rises, thus pulling water into the cell leading to lethal cell swelling (Toledo-Pereyra, 42). Methods With the modern technologies, some organs such as the liver can be stored for a longer periodthrough flushing the tissues or applying organ preservation fluids and preserving the tissues at (0–5° C) hypothermic temperatures. This method is efficient as it uses various impairmentagents such as...
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Emerency Sevices Managment - Advaced Interactions of Hazardous Materials IV
3 pages (750 words)
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...Arrhenius equation. The enthalpy value is negative, and the product is more stable than the reactants. However, if the increase in temperature is not controlled, the equilibrium of the system shifts to the right, leading to more heat production beyond the control of the instruments in use. The system has to get rid of the heat, and this is how explosion occurs. Cooling systems in manufacturing plants play a key role in temperature regulation. In most cases, water is used as the coolant. When it evaporates, it takes along the heat of vaporization and thus a drop in temperature. However... Exothermic Runaway Reaction affiliation Exothermic Runaway Reaction Understanding how chemical reactions occur gives...
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How the Rate of the Reaction Is Affected by Activation Energy; Temperature; Frequency of Collisions and Orientation of Collisions
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...Arrhenius’ Law, ( ) = ( ) where R = 8.314 J/mol*K ; T = 22 + 273.15 = 295.15 --- ( ) = ( ) and, solving for T2 --- 1.94591 = 6495.069 ( ) --- T2 ≈ 323.781 K or 50.6°C (4) Answer the questions below based on the following potential energy diagram: (a) How many steps are represented in this reaction profile? There are THREE steps in all. (b) Which step is the rate-determining step? STEP 2 is the rate-determining step since it has the highest transition state, having Ea2 which is the largest in magnitude among the three activation... Explain with...
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Global Warming
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...Arrhenius and Chamberlin (Berner, 1995, p. 492). Arrhenius was the first to calculate the magnitude of the effect on global temperature in 1896 and his data bought up the possibility of future warming. His data was the first to link global temperature with the volume of atmospheric carbon dioxide... ? Global Warming Full Global Warming Introduction Global warming refers to climate change that represents an increase in the average temperatureof the Earth. It is defined as “increase in the earth’s atmospheric and oceanic temperatures widely predicted to occur due to an increase in the Greenhouse Effect caused especially by pollution” (Merriam-Webster). The definition explains the climate change, which is...
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Nature and landscapes are nothing more than sedimented history
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...Arrhenius who did his Ph.D. in physics and his project earned him the lowest grades possible in a class... Nature and Landscapes are nothing more than Sedimented History Nature and Landscapes are nothing more than Sedimented History Introduction A nature is the original appearance of the worldview before it has been acted by human activities. Human activities do not touch most of the twenty-first-century landscapes. In the earth, there is no place that is unaffected by the human activities. People make part of the while their actions affect the biodiversity that results to change the natural landscape. Human beings petro patch have changed the landscape to an extent that quite a small number of places in ...
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Environmental Issues
8 pages (2000 words)
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...Arrhenius and Chamberlin (Berner, 1995, p. 492). Arrhenius was the first to calculate the magnitude of the effect on global temperature in 1896 and his data bought up the possibility of future warming. His data was the first to link global temperature with the volume of atmospheric carbon dioxide... Global Warming Full Global Warming Introduction Global warming refers to climate change that represents an increase in the average temperature of the Earth. It is defined as “increase in the earth’s atmospheric and oceanic temperatures widely predicted to occur due to an increase in the Greenhouse Effect caused especially by pollution” (Merriam-Webster). The definition explains the climate change, which is...
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The human population explosion on a finite planet: is there a limit to limitless growth
7 pages (1750 words)
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...Arrhenius, 1996). Global warming in return causes, melting of the ice caps leading to shortage of water and a rise in sea levels. Climate patterns too have drastically changed due to these effects. The drying up of lake beds and dust replacing these beds has resulted to the air we breathe being filled with dust particles. This dust not only causes pollution to the environment, but also poses a health risk to the world’s population since these kind of dusty environment creates a good avenue for the thrive of diseases such as asthma and other chest related complications. Food Shortage Every human being... The Human Population Explosion on a Finite World Introduction John Malthus, a popular scientist, lived ...
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Los Angeles lab report
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...Arrhenius equation is used to connect activation energy with the rate constant. The activation energy does not change since it is not temperature dependent. The reaction of oxygen and cellulose is spontaneous, but initiation of combustion is required by addition of activation energy from the lit match. The violet-colored CV+ reactant slowly faded to a colorless product as the reaction proceeded, following the typical behavior of any indicator. The colour change were be measured by a Vernier Colorimeter set at 565 nm of wavelength in the assumption that the absorbance was in direct proportion with the crystal violet econcentration according to Beer’s law (Stenberg, 2005)....
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Chemical KInetics Chemistry
6 pages (1500 words)
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...Arrhenius in 1889, and is the amount of energy needed to be gained by the reactant molecules to form the product. During the exact instant of collision, the pre-existing bonds are broken and new bonds formed. This results in the formation of the products of the reaction. The Maxwell-Boltzmann distribution law explains how the number of molecules that exist... Task A. Explaining the factors that affect the rate of reaction Temperature Raising the temperature of a chemical reaction causes the reaction rate to rise due to the increased amount of high energy collisions between the molecules involved. It is only such collisions that end up in a reaction. One requirement for the collisions to occur is that...
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Global warming & human activities
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...Arrhenius predicted that a doubling of atmospheric carbon dioxide would raise average global temperatures by 4.95 degrees C (9.0 degrees Fahrenheit) (Valente, 1995). The greenhouse effect, a natural phenomenon that has allowed the development of life on earth, is thought by many scientists to have been radically altered by humankind’s impact on the composition of the atmosphere. The problem lies in humans’ effects on the dynamic nature of the heat exchange process of the sun... Global Warming and Human Activities Introduction Humans have understood for over a hundred years the possibility of atmospheric warming due to anthropogenic carbon dioxide emissions. As early as 1896, Swedish chemist Svante...
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Crystal Violate activation of energy
2 pages (500 words)
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...Arrhenius equation   is used to connect activation energy with the rate constant. The activation energy does not change since it is not temperature dependent. Experimental Sources of Error: A source of error in this experiment could have been misreading of measurements. Since we were working... Rate Determination and Activation Energy Activation energy is the energy required to initiate and otherwise spontaneous chemical reaction to continue to react without any need for additional energy. Determination of activation energy, Ea is vital part in chemical kinetic analysis of reactions. Combustion of a paper is an excellent example of activation. The reaction of oxygen and cellulose is spontaneous, but...
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Global Warming
5 pages (1250 words)
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...Arrhenius predicted that a doubling of atmospheric carbon dioxide would raise average global temperatures by 4.95 degrees C (9.0 degrees Fahrenheit) (Valente, 1995). The greenhouse effect, a natural phenomenon that has allowed the development of life on earth, is thought by many scientists to have been radically altered by humankind’s impact on the composition of the atmosphere. The problem lies in humans’ effects on the dynamic nature of the heat exchange process of the sun, earth, and black space... Global Warming Introduction For over a hundred years, humans have understood the possibility of atmospheric warming due to anthropogenic carbon dioxide emissions. As early as 1896, Swedish chemist Svante...
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Lighting
5 pages (1250 words)
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...Arrhenius (1900), Carl Stormer and Bossekop covering the years 1910-1913 (Spencer, 1918). Their theories commonly studied the aurorae regions and the interrelated processes of the sun’s activities with electrified particles colliding with the magnetic fields of the earth... ? IS AURORA BOREALIS, A MYTH? OR A METEOROLOGICAL PHENOMENON? Is Aurora Borealis, a Myth or a Natural Meteorological Phenomenon? Abstract Any spectator can get ecstatic like having intense emotions and excitement while viewing the spectacular moving and shimmering lights of Aurora Borealis, also known as “Northern Lights”. It is one of the marvelous sights in the evening skies of the earth’s northern hemisphere. Is this a myth or a...
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Global Warming
4 pages (1000 words)
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...Arrhenius wrote in his book Worlds in the Making (1908) that if the content of carbon dioxide in air would double, the Earth’s surface temperature has to rise in 40 ° C. It’s established that the content of carbon dioxide in the atmosphere over the past 100 years has increased by 25%. During this period, global temperatures... Introduction Today, after the incredible space missions and amazing discoveries in our Universe, the mankind pays regard again to its common home - the planet Earth. The Earth problems, their understanding and interpretation should take an important place among the fundamentals of modern scientific knowledge, as their solution largely predetermines the future of our civilization...
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Chemistry
6 pages (1500 words)
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...Arrhenius view of an acid is a substance that dissociates in water to produce a hydrogen ion. There is a serious problem with this, however: the hydrogen ion is no more than a proton, a bare nucleus. Although it carries only a single unit of positive charge, this charge is concentrated into a volume of space that is only about a hundred-millionth as large as the volume occupied by the smallest atom. Owing to its extremely small size, the proton will be attracted to any part of a nearby atom or molecule in which there is an excess... Lab report: Ionic equilibria (Word count: 1456) Laboratory report: Ionic equilibria Aim of the experiment. To carry out an acid-base pH...
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Global Warming
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...Arrhenius, which became known at the beginning of the 1990s, have formed the opinion that global warming was caused by the increasing concentration of greenhouse gases... number Is Global Warming a Myth or Reality? The issue of global warming arose in the 60s of the last century and became one of the most debated and controversial topics of our time. Long-term observations let the scientists arrive at the conclusion that air temperature has increased by slightly more than one-tenth of a degree. In the 1980s this phenomenon turned to be a topic of UN reports. Air temperature was considered increase at an average by 0,3-0,6 degrees for the last 100 years. The presumptions of Swedish scientist Arrhenius,...
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Climate Change Impacts & Trends
5 pages (1250 words)
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...Arrhenius gets the credit for pioneering the awareness on issues related to global warming when he proclaimed in 1896 that combustion of fossil fuel would enhance global warming. Global warming is the long-term and short-term influence on the climate that leads to increased greenhouse gas emission causing adverse impacts on the biological and physical systems. The menace is referred to as global warming because temperatures rise above the normal limits to melt the snows leading to rise in sea levels and ocean acidification (Figure 1). People did not take global warming seriously during 1900... Climate Change (Impacts & Trends) Climate Change (Impacts & Trends) Background A Swedish scientist d Svante...
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Global Warming
4 pages (1000 words)
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...Arrhenius wrote in his book Worlds in the Making (1908) that if the content of carbon dioxide in air would double, the Earth’s surface temperature has to rise in 40 ° C. It’s established that the content of carbon dioxide in the atmosphere over the past 100 years has increased by 25%. During this period, global temperatures... ?Introduction Today, after the incredible space missions and amazing discoveries in our Universe, the mankind pays regard again to its common home - the planet Earth. The Earth problems, their understanding and interpretation should take an important place among the fundamentals of modern scientific knowledge, as their solution largely predetermines the future of our civilization...
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Case Study Research Assignment
6 pages (1500 words)
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...Arrhenius predicted that a doubling of atmospheric carbon dioxide would raise average global temperatures by 4.95 degrees C (9.0 degrees Fahrenheit) (Valente, 1995). The greenhouse effect, a natural phenomenon that has allowed the development of life on earth, is thought by many scientists to have been radically altered by humankind’s impact on the composition of the atmosphere. The problem lies in humans’ effects on the dynamic nature of the heat exchange process of the sun, earth, and black space... Global Warming Introduction For over a hundred years, humans have understood the possibility of atmospheric warming due to anthropogenic carbon dioxide emissions. As early as 1896, Swedish chemist Svante...
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Kinetic of the catalytic decomposition of hydrogen peroxide
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...Arrhenius equation The above equation shows the variation of rate of reaction with temperature and activation energy. For hydrogen peroxide, the rate increases with an increase in temperature that enhances activation energy. IN the equation below... Catalytic Decomposition of Hydrogen Peroxide Aim of the investigation By varying the concentration of hydrogen peroxide, investigatethe rate of decomposition so ass to determine the nature of chemical reactions hydrogen peroxide with other substances such as metals and other chemical solutions. By varying the quantity used of manganese (VI) oxide, investigate the effect on the rate of decomposition of the hydrogen peroxide. Several factors such as quantity of ...
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Global warming is bad
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...Arrhenius’s simple investigation for the measurement of temperature rise as a result of global warming ended up in a long list of puzzles. Since late 1990s millions of dollars were devoted to the research on climate impact as this study requires expensive equipments and specialized scientists (177-8). Khandekar, Murty and Chittibabu summarize the case for global warming as the idea of global warming owes much to Joseph Fourier’s concept of earth’s atmosphere acting like a glass of greenhouse that let shortwave light rays through while... Your Global warming is bad “The term global warming is now popularly used to refer to the recent reported increase in the mean surface temperature of the earth; this...
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Global Warming
4 pages (1000 words)
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...Arrhenius (1859-1927), who claimed that the combustion of fossil fuels would eventually lead to a global temperature rise (Weart 205). However, this work was overlooked, due to the fact that human activity was too insignificant to have any impact on the planet, because of its sheer size and nature (Maslin Ch. 2). Improvements in infrared spectroscopy, in the 1940s, opened up a new chapter in the global warming phenomenon, where scientists... ?“Global Warming” and how it affects the world in a negative way and how it must be stopped. Overview. Global warming, the supposed pinnacle of all topics during the last few decades has haunted environmental proponents into a debating frenzy as to whether the...
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Chemical KInetics Chemistry
6 pages (1500 words)
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...Arrhenius in 1889, and is the amount of energy needed to be gained by the reactant molecules to form the product. During the exact instant of collision, the pre-existing bonds are broken and new bonds formed. This results in the formation of the products of the reaction. The Maxwell-Boltzmann distribution law explains how the number of molecules that exist... Task A. Explaining the factors that affect the rate of reaction Temperature Raising the temperature of a chemical reaction causes the reaction rate to rise due to the increased amount of high energy collisions between the molecules involved. It is only such collisions that end up in a reaction. One requirement for the collisions to occur is that...
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Global warming
12 pages (3000 words)
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...Arrhenius and Chamberlin (Berner 492). Arrhenius was the first to calculate the magnitude of the effect on global temperature in 1896 and bought up the possibility of future warming. The calculations were done mainly to explain Ice Ages and the possibility of global warming was not stressed upon. Furthermore, the idea... 22 March Global Warming Introduction Global warming refers to climate change that represents an increase in the averagetemperature of the Earth. It is defined as “increase in the earth’s atmospheric and oceanic temperatures widely predicted to occur due to an increase in the Greenhouse Effect caused especially by pollution” (Merriam-Webster). The definition explains the climate change,...
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Energy Use, Ethics, and Global Climate Change
10 pages (2500 words)
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...Arrhenius, formulated the theory asserting that carbon... Environmental studies Introduction Environment is usually used to define the natural surroundings, and refers to the total of all existing and non-living stuffs that envelop a creature, or group of creatures. Environment encompasses all essentials, factors, and situations that have some effect on the augmentation and progress of certain beings. Environment comprises of both biotic and non-biotic issues that have control on organisms (Anil, 27). Non-biotic factors like light, heat, water, and distinctive gases merge with biotic factors (all adjacent living genuses). Environment habitually changes over time and therefore, numerous organisms have...
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PENTACENE BASED ORGANIC MIS STRUCTURES: STRUCTURAL ANALYSIS AND ELECTRICAL PROPERTIES
10 pages (2500 words)
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...Arrhenius plot is shown in the inset of the above picture [15]. The above plot also shows the grown dark conductivity of the undoped piece of the pentacene sample which is found to be 3 x 10-7 Ω-1 cm-1 at room temperature. The dark conductivity increases... Introduction to Pentacene Based Organic MIS Structures Several applications use organic electro-optics and electronic devices due to the revolutionary developments made in the organic thin film transistors (OTFT), organic light emitting devices (OLED), photo-detectors and photo-voltaic cells [1]. These organic electronic devices can be fabricated at low price and low temperature due to the flexible nature of the organic electronic materials, which...
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Polymerization
10 pages (2500 words)
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...Arrhenius equation which is k = –Ea/ RT k - is t - A - constant. Therefore in order to calculate kt we will consider then equation 2k t [M]o2. This equation occurs after integration of –d [A] by [M] = [M]o – [M]o P = [M]o (1- P) and this is through substitution. Rp = kp [f kd [I]kt ]1/2[M] Rp = rp + ri = [ f kd [I]kt ]1/2[M] + 2 f kd [I] Rp = -rt = 2kt [f kd [I]kt ]1/2 Rp = [ kp2(f kd kt)1/2 ] [M][I]1/2 Therefore, the calculation will be 9.37 * 10- 4 = [107.3432 ( 0.7 * 1015.2 * kt) 1/2]] [3.14] [1.59 * 10-4] Question two Ethylene which when linked to form polyethylene is a low density plastic through additional polymerization. The result... POLYMERIZATION and Question one a) Derivation of...
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Polymerization
10 pages (2500 words)
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...Arrhenius equation which is k = –Ea/ RT k - is t - A - constant. Therefore in order to calculate kt we will consider then equation 2k t [M]o2. This equation occurs after integration of –d [A] by [M] = [M]o – [M]o P = [M]o (1- P) and this is through substitution. Rp = kp [f kd [I]kt ]1/2[M] Rp = rp + ri = [ f kd [I]kt ]1/2[M] + 2 f kd [I] Rp = -rt = 2kt [f kd [I]kt ]1/2 Rp = [ kp2(f kd kt)1/2 ] [M][I]1/2 Therefore, the calculation will be 9.37 * 10- 4 = [107.3432 ( 0.7 * 1015.2 * kt) 1/2]] [3.14] [1.59 * 10-4] Question two Ethylene which when linked to form polyethylene is a low density plastic through additional polymerization. The result... POLYMERIZATION and Question one a) Derivation of...
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Will Global Warming Heat up Or Cool Down the Economy
6 pages (1500 words)
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...Arrhenius first stumbled upon the greenhouse phenomenon in 1897, but it was not until 90 years later that the subject entered the public consciousness. This happened after James Hansen of the National Aeronautics and Space Administration (NASA) in the US refined the theory and connected it with current climate behavior to earn for himself the distinction as father of the greenhouse theory. The greenhouse effect theory postulates that the gases and carbon dioxide expelled by people through the burning of fossil fuels, land clearing and agriculture collect in the atmosphere and cause the earth's average... Global Warming Heat up Or Cool Down the Economy Introduction Swedish chemist Svante Arrhenius...
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Built environment assignment (Physics equations)
11 pages (2750 words)
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...Arrhenius showed that the relationship between temperature and the rate constant for a reaction obeyed the following equation. In this equation, k is the rate constant for the reaction, Z is a proportionality constant... FIREAND THE BUILT Assignment Part One common thing about builders, developers and commercial property owners is their dread of a devastating fire. Indeed, it is very simple for a fire to start. All that is needed is a 'heat source or spark, some flammable material, and a few minutes of inattention for livelihoods-and lives-to go up in smoke'.1 The kitchen is where fires usually start, either in homes, hotels or restaurants. But no matter where a fire commence, it is very important to...
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Argumentive Thesis
6 pages (1500 words)
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...Arrhenius in 1896, its still not fully... ?[Type the company IS GLOBAL WARMING A GENUINE THREAT TO THE PLANET EARTH? ARGUMENTATIVE THESIS [Pick the Is global warming a genuine threat to the planet earth? Introduction: Simply put global warming is the absorption of Sun’s infra red radiations by greenhouse gases in the earth’s atmosphere, resulting in an overall rise in the temperature of the planet; greenhouse gases being water vapor, carbon dioxide, methane and nitrous oxide ((IPCC, 2007). The concept known to every environmentally aware individual today and simple though it may sound, this is one of the least understood and most controversial issues today. First mentioned by Swedish scientist Svante...
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Effect of Temperature on Peroxidase Activity
8 pages (2000 words)
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...Arrhenius equation. Effect of Temperature on Peroxidase Activity Introduction An enzyme is defined as a protein that catalyzes a chemical reaction by lowering energy barrier, biology book. Enzymes are made up of hundred of amino acids to form peptides and these peptides binds with each other to form the active protein molecules, Biology book. Nevertheless, the enzyme has a specific three dimensional shape. A part of this shape forms the active site, where the enzyme connects or combines with the substrate. The enzymes are very specific for the substrates. They bind with the specific substrates... Temperature affects the enzyme activity as it changes the conformation of the enzyme. Enzymes are proteins...
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Impact of a water Jet laboratory
6 pages (1500 words)
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...Arrhenius equation   is used to connect activation... Impact of a Water jet laboratory Introduction Freezing also referred to as solidification is a transition phase at which a liquid changes into a solid whenever its temperature is lowered below its standard freezing point (Neil, 2008). It is worth noting that all liquid with the exception of liquid helium freeze whenever the temperature is reduced enough. In regard to liquid helium, it can only be solidified under pressure The (Computer-Based Laboratory, 2007). Research has it that most substances freeze and melt at the same temperature points. However, some substances have different solid-liquid temperatures of transition (Neil, 2008). The term molar...
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Define global warming, What are the causes and effects for global warming and how can these problems be solved
14 pages (3500 words) , Download 1
...Arrhenius in the last decade of nineteenth century. The effect is explained in the following lines. Sun is a continuous source of energy for our earth and its energy reaches the earth in form of electromagnetic radiations. A part of these radiations is absorbed by the outer atmosphere... The term ‘Global Warming’ refers to the continual increase in earth’s average temperature since 1950s due to the human activity and environmental deterioration. A term closely associated with the global warming is the Green House Effect which is the trapping of heat by the gases such as carbon dioxide, hydrocarbons and fuel particles, water vapors etc. Green House Effect was first studied by S. Arrhenius in the last...
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Global Warming
12 pages (3000 words)
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...Arrhenius during the last decade of the 19th century when the scientists first observed the changing global climatic... ? Global Warming ...The term Global Warming refers to the continuous increase in earth’s average temperature since 1950’s due to human activity and environmental deterioration by various harmful chemicals which are being added to the environment, mainly due to the burning of the fossil fuels. Another term that needs to be defined along with Global Warming is the Green House Effect, which refers to the trapping of heat by the gases such as carbon dioxide, hydrocarbons, water vapors and fuel particles etc. Green House Effect was first considered into study...
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Global Warming
13 pages (3250 words)
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...Arrhenius in the last decade of nineteenth century. The effect is explained in the following lines. Sun is a continuous source of energy for our earth and its energy reaches the earth in form of electromagnetic radiations. A part of these radiations is absorbed by the outer atmosphere... The term ‘Global Warming’ refers to the continual increase in earth’s average temperature since 1950s due to the human activity and environmental deterioration. A term closely associated with the global warming is the Green House Effect which is the trapping of heat by the gases such as carbon dioxide, hydrocarbons and fuel particles, water vapors etc. Green House Effect was first studied by S. Arrhenius in the last d...
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Global Warming
12 pages (3000 words)
Nobody downloaded yet
...Arrhenius during the last decade of the 19th century when the scientists first observed the changing global climatic... ? Global Warming ...The term Global Warming refers to the continuous increase in earth’s average temperature since 1950’s due to human activity and environmental deterioration by various harmful chemicals which are being added to the environment, mainly due to the burning of the fossil fuels. Another term that needs to be defined along with Global Warming is the Green House Effect, which refers to the trapping of heat by the gases such as carbon dioxide, hydrocarbons, water vapors and fuel particles etc. Green House Effect was first considered into study...
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