StudentShare solutions
Triangle menu

Thermodynamics - Assignment Example

Not dowloaded yet

Extract of sample
Thermodynamics

The idea of making a bag that would keep the pizza hot for as long as it remains in it is built on the possibility of creating an isolated system. Once an isolated system is created, the first law guarantees that the energy (heat is a form of energy) will remain constant inside the system, which means whatever is in the bag will have a constant temperature, since temperature is a measure of heat.
Another way to phrase the first law of thermodynamics is: "energy can neither be created nor destroyed," given that the isolated system is one that does not allow energy nor matter to cross its boundary it is easy to see how an isolated system can keep its temperature constant.
Another way to put it is that energy's ability to do work always decreases. In terms of heat, work is done by heat's transition, and so for the energy's ability to do work to decrease (i.e. for entropy to increase) the systems would reach their maximum entropy when they have the same temperature, which would mean that they will no longer be able to exchange heat between them and therefore would not be able to do work.
As isolated systems, the pizza bag's entropy increases, however the pizza bag and the surroundings together have an entropy that does not increase, this does not violate the second law of thermodynamics since it states that only entropy of an isolated system can increas ...Show more

Summary

Thermodynamics, the study of energy and its transformations, has a set of four laws that govern the behavior of energy. Scientists have theorized that energy can be exchanged between physical systems as heat or work. They also put forward the existence of a quantity named entropy which can be defined as an isolated system that is in thermodynamic equilibrium…
Author : cronajake
Thermodynamics essay example
Read Text Preview
Save Your Time for More Important Things
Let us write or edit the assignment on your topic
"Thermodynamics"
with a personal 20% discount.
Grab the best paper

Related Essays

Organic Chemistry Intro. to Radical Halogenation, Thermodynamics, Kinetics, Radical Halogenation Cont., Alkyl halides
During any reaction free energy is always emitted. This is the thermodynamic mass. Kinetics defines a reaction rate and time taken to arrive at equilibrium while thermodynamics provides details about the products obtained from equilibrium of a reaction. In organic transformations, a kinetic reaction is more stable at its reactant state.
4 pages (1000 words) Assignment
Global Environmental Change
The rationale why a properly designed source-separation recycling program takes less energy and produces less pollution than a centralized program that collects mixed wastes over a large area and
1 pages (250 words) Assignment
Thermodynamics and Heat Power
The work done on the surroundings is 277kj. If this is done adiabatically, what is the final temperature (K) and pressure (bars) A supply line carries a two-phase liquid-vapor
1 pages (250 words) Assignment
Thermodynamics I
Assume an ideal gas compressed from 300K, 0.1 Mpa to 0.8MPa isothermally. The values of interest will be, In adiabatic expansion, there is rapid compression of the gas
2 pages (500 words) Assignment
THERMODYNAMICS AND FLUID MECHANICS
It may be observed that the HGL almost assumes the same shape and slope of EGL just as the left-hand side of the Bernoulli’s equation merely
6 pages (1500 words) Assignment
Thermodynamics: Technical and economic analysis of a combined cycle power generation technology
This utilization increases the overall efficiency of the combined power cycle. Such a power plant will require a number of inputs which include: combined new power output (wnet), the Brayton cycle parameters and the steam cycle parameters. The outputs on the
7 pages (1750 words) Assignment
Assign3
In order for one anti up and up quarke to take place, annihilating which is responsible for producing energy is examined. 3. Proofs about the dark energy which are related with the galaxy clusters have been
2 pages (500 words) Assignment
Assignment for biochemistry
The chemical reactions that release energy are more likely to occur than those that absorb energy. This is because fixing energy in the constituent macroscopic parts of the
1 pages (250 words) Assignment
Leonardo Da Vinci Perpetual Machine
tor joined collective efforts to construct a perpetual machine and created drawings of it, examining the idea, though he did not support its credibility much (Mirowski). Da Vinci’s projects of the perpetual machine focused on overbalanced wheels, with at least four different
1 pages (250 words) Assignment
Explain what an electric or magnetic field is. Describe their nature, and how you might measure field strength and potential energy. Include graphs and diagrams in your discussion. Describe also: Intermolecular fields Electric and gravitational fields
To measure the potential energy for gravitational force, the formula used is P.E. = mgh where m stands for mass that is measured in kilograms, g stands for acceleration because of gravity and its value is 9.8 m/s2 at the earth’s surface whereas h stands for height
2 pages (500 words) Assignment
Get a custom paper written
by a pro under your requirements!
Win a special DISCOUNT!
Put in your e-mail and click the button with your lucky finger
Your email
YOUR PRIZE:
Apply my DISCOUNT
Comments (0)
Rate this paper:
Thank you! Your comment has been sent and will be posted after moderation