CH302H - Principles of Chemistry II: Honors
Spring 2016, Unique 49420

Lecture Summary, 26 January 2016

Entropy continued:  We developed a series of expressions to define changes in entropy at constant temperature, constant volume, and constant pressure.  We also worked through a very famous proof that entropy is a state function, the Carnot cycle.
Third Law of Thermodynamics: Finally, we stated the third law of thermodynamics, which states that the entropy of a pure crystalline solid at 0 K is 0.  This will allow us to define a so-called "molar entropy" of any atom or molecule at a standard state.