Thermodynamics: Regular Solutions, Bonding, and the Competition between Enthalpy and Entropy
Channel: Beckman WSU Official
Date: 2022-03-07

In this lecture I present the regular solution model, examine the bonding and statistical origin of the enthalpy of mixing, and ultimately look at the temperature dependence of the free energy of mixing. In many cases there is an inherent competition between the entropy, which drives toward disorder, and the enthalpy, which drives toward ordering. We generalize an expression for the chemical potentials showing that they are the intercept of a tangent line drawn from the free energy at a particular composition. 
(F22_L12)