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# Heat and Temperature - Essay Example

## Extract of sample Heat and Temperature

Heat and Temperature

The study of heat relates to kinetic theory of matter by considering the characteristics surrounding matter and its relation to heat production. The kinetic theory of matter states that all matters are composed of small particles referred to as atoms and molecules (kurtus, 2007). Whether the matter is in the form of solid, liquid or gas, it consists of molecules. These molecules are in constant movement bombarding each other like billiard balls. Such characteristic of motion is responsible for the production of heat. However, the amount of heat produce depends on the speed of collision produced by the molecules. The faster the motions of the particles are the higher the thermal energy is enough to change the state of the matter from solid to liquid or to gas. With this, it is inevitable not to relate heat with the kinetic theory of matter. What is heat Heat is defined as the transfer of energy from an object with higher temperature to an object with lower temperature (Freeman, 2005). For instance, if you touch a hot iron, you feel the heat as the thermal energy enters your hand because the iron is warmer than your hand. Consequently, if you touch a cold drink, the energy passes out of your hands and into the cold drink. The heat which passes from the hot iron to a colder hand originates in the internal energy of the hot object. The internal energy is the sum of the kinetic energy of the molecules called the molecular energy. The kinetic energy is called the thermal energy. Both kinetic and potential energies of the molecules provide the ultimate source of heat which is only appreciated when there is a difference in the temperature of objects coming in contact together until equilibrium is reached. With this, it is important to note that when one is exposed outside the cold winter, there is a need to wear a coat to slow down the flow of the heat from the body. What is Temperature Temperature is the state of coldness and hotness of an object measured with a device called thermometer. The expansion and contraction of the mercury within the thermometer is compared in a scale to measure how much thermal energy is present in certain molecules of an object. Usually, it is expressed in Celsius or Fahrenheit depending on which is more adopted in certain countries. Temperature is proportion to the average molecular kinetic energy. Objects with warmer temperature are known to have more kinetic energy in their atoms and molecules while colder objects have lesser kinetic energy. For objects being pummeled gains more kinetic energy because their molecules are made to move back and forth at a faster rate. Although, this is the case, there is no absolute limit to temperature. The absolute temperature is measure through Kelvin scale. What is the relationship between heat and temperature With the definition of heat and temperature, their relationship resides in the activity of the molecules to cause thermal and potential energies. It is obvious that heat does not necessarily cause the rise and fall of a temperature. It is the amount of thermal energy that causes the temperature to change or to remain constant. If you ...Show more

## Summary

Although, we experience heat in our everyday life, we tend not to pay attention to the kind of heat we are subjected to, its relation to temperature and matter, and other interesting information about it…
Author : opalberge
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