Thermodynamics Essay

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Laws of thermodynamics Thermodynamics Shandy Erisman Grantham University Mr. Wells Intro to Environmental Science 10/02/2012 Thermodynamics Thermodynamics is the study of energy. Energy is the ability to do work, or bring about change. It is found in many forms heat, light, electric or chemical. The principles of thermodynamics are based upon two laws. The first law of Thermodynamics states that energy can never be created or destroyed. It can be changed from one form to another, but the total amount of energy in the universe remains a constant. The second law of Thermodynamics states that for every energy exchange the potential energy of the derivative will be less than that of the initial state. The first law of Thermoodynamics the “Conservation” law clearly states that energy cannot be created or destroyed each energy transaction then must convert energy from one form to another. In doing this the output will not be capable of the same amount of work as the input state. Thus the two laws of thermodynamics work together in each energy exchange. The kinetic energy that occurs during the energy exchange is no longer part of the potential energy of the input state. Oil is quite possibly the most used energy form in this country. A barrel of oil is a resource pool of potential energy. As the oil is refined the potential energy is concentrated into a smaller volume thus gasoline is a higher concentration of potential energy than oil however the volume becomes less. This gasoline can then be used as a fuel source for an internal combustion engine. As the engine uses this energy for fuel two energy conversions are taking place the first being the kinetic energy output of the engine and the second being heat from the combustion.

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