## Chemical potential

Attached are the slides and notes for a course on engineering thermodynamics.

## Pressure

So far we have been mainly concerned with systems of a single independent variable: energy (node/4878). We now consider a system of two independent variables: energy and volume. A thermodynamic model of the system is prescribed by entropy as a function of energy and volume.

The partial derivatives of the function give the temperature and the pressure. This fact leads to an experimental procedure to determine the function for a given system.

The laws of ideal gases and osmosis are derived. The two phenomena illustrate entropic elasticity.

## Engineering Sciences 241: Advanced Elasticity

This is a second graduate course in solid mechanics.  Building on thermodynamics and linear algebra, the course explores coupled mechanical, thermal, electrical, and chemical actions.  The course draws heavily upon phenomena in soft active materials.

The course taught in the past:

## The Boltzmann Distribution

• A small system in thermal contact with a large system
• The Boltzmann factor
• Partition function
• The probability for a system in thermal equilibrium with a reservoir to be in a specific state
• The probability for a system in thermal equilibrium with a reservoir to be in a configuration
• Thermal fluctuation of an RNA molecule
• A matter of words