3.1. Phase Equilibrium

Lecture on the thermodynamics of phase equilibrium, with an introduction to chemical potential as a thermodynamic parameter. Phase diagrams of one-component systems are also discussed with a derivation of the Clapeyron equation. Later on, the Gibbs Phase Rule is introduced as a prelude to discussion on multi-component systems.

OUTLINE

0:19 Review of criteria for spontaneity and equilibrium
7:12 Types of equilibrium: mechanical, thermal and material equilibrium
11:25 Phase Diagrams Overview
13:42 Chemical potential in phase transitions
20:53 Derivation of the Clapeyron Equation for phase transitions
41:54 Clausius-Clapeyron equation for vapor phase transitions
54:12 Conditions for phase stability
1:00:53 Additional notes on phase diagrams of one-component systems
1:05:02 The Gibbs Phase Rule
1:23:31 Application of Gibbs Phase Rule to one-component systems