We continued our discussion of the regular solution model and its application to phase diagrams. We then explored eutectic diagrams and several applications of them.

Summary - Slides

We talked a bit more about ideal binary phase diagrams and the associated cooling curves. We then discussed the case of chemical interactions through the use of activity and the activity coefficient. Finally we started a discussion of a model on non-ideality, the regular solution model.

Summary - Slides

We developed an ideal binary phase diagram for a two component system that can exist in the solid and liquid phase. We extended this a bit to discuss the application to distillation.

Summary - Slides

We did some practice problems, which we’ll finish on Friday.

Practice Problems

We derived the Clapeyron Equation to describe the coexistence curve for a single component system. This required a few assumptions which led us to the Clausius-Clapeyron Equation for the equilibrium between a condensed, pure phase and the vapor phase.

Summary - Slides

After finishing up the practice problems from last time, we took a look at phase equilibria in single component systems. This led to the construction of our first (of many) phase diagrams.

Summary - Slides

We discussed reactions involving condensed phases. We then tackled some practice problems.

Summary - Slides - Practice Problems - Homework 7

We tackled two examples of applying our framework of chemical equilibrium to chemical reactions. We also saw how the pressure impacts gas phase reactions.

Summary - Slides

Using the idea of chemical potential we can up with the familiar expression for the equilibrium constant of a gas-phase reaction. We then looked at the temperature dependence of the equilibrium constant.

Summary - Slides

I will not be on campus tomorrow. Please contact me if you have questions, I will be responding to email in the afternoon.