The First Law of Thermodynamics

The change in internal energy U of a system is equal to the heat that flows into the system Q minus the work W done by the system on its surroundings;

U = Q - W

this is known as the First Law of Thermodynamics.

The First Law of Thermodynamics is a restatement of the Work-Energy Theorem and the ideas of Conservation of Energy.




Second Law of Thermodynamics
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