The Laws of Thermodynamics
0. Two bodies in thermal equilibrium are at same T
1. Energy can never be created or destroyed.
2. The total entropy of the UNIVERSE
( = system plus surroundings) MUST INCREASE
in every spontaneous process.
? STOTAL = ? Ssystem + ? Ssurroundings > 0
3. The entropy (S) of a pure, perfectly crystalline
compound at T = 0 K is ZERO. (no disorder)