Laws of Thermodynamics
There are three laws of the thermodynamics.
First Law:
Energy can be neither created nor destroyed. It can only change forms.In any
process in an isolated system, the total energy remains the same.
Second Law:
When two isolated systems in separate but nearby regions of space, each in
thermodynamic equilibrium in itself, but not in equilibrium with each other at first, are at
some time allowed to interact, breaking the isolation that separates the two systems, and they
exchange matter or energy, they will eventually reach a mutual thermodynamic equilibrium.
The sum of the entropies of the initial, isolated systems is less than or equal to the entropy of
the final exchanging systems. In the process of reaching a new thermodynamic equilibrium,
entropy has increased, or at least has not decreased.
Third Law:
As temperature approaches absolute zero, the entropy of a system approaches a
minimum.
TERMS
The lowest temperature that is theoretically possible.
A thermodynamic property that is the measure of a system's thermal energy per unit of temperature that is unavailable for doing useful work.
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