19.3 Macro and Micro States
19.3 Comparing Entropy of Various Systems
The second law of Thermodynamics states that in any spontaneous process there is always an increase in entropy of the universe.
19.3 2nd Law of Thermodynamics
The third law of Thermodynamics states that the entropy of a pure crystal at zero degress kelvin is zero. The change in entropy of a reaction can be calculated from the standard entropy of each substance.
19.3 3rd Law of Thermodynamics