Thermodynamics - Thermodynamics GS104 Environmental Science...

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Thermodynamics GS104 Environmental Science Robert McGill 02 Nov 2011 Thermodynamics 1
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Thermodynamics is the study of the laws that govern the conversion of energy from one form to another, the direction in which heat will flow, and the availability of energy to do work. It is based on the concept that in an isolated system anywhere in the universe there is a measurable quantity of energy called internal energy. This is the total kinetic and potential energy of the atoms and molecules of the system of all kinds that can be transferred directly as heat; it therefore excludes chemical and nuclear energy. This value can only be changed if the system ceases to be isolated. In these circumstances the amount of energy can be changed by the transfer of mass into or out of the system. The First Law of Thermo-Dynamics states that a change in the internal energy of a closed thermodynamic system is equal to the difference between the heat supplied to the system and the amount of work done by the system on its surroundings.
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Thermodynamics - Thermodynamics GS104 Environmental Science...

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