- 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.