#### Fundamental Property Relations: Summary

The answers to the ConcepTests are given below and will open in a separate window.

##### Key points from this module:

- Using Maxwell relations and other mathematical relations allows thermodynamic properties for a species to be determined from its heat capacity and an equation of state.
- Useful relations between state variables can be derived from the first law applied to a reversible closed system.

##### From studying this module, you should now be able to:

- Know what is meant by an exact differential.
- Derive Maxwell relations from an exact differential.
- Apply the chain rule, triple product rule, and expansion rule.

*Prepared by John L. Falconer, Department of Chemical and Biological Engineering, University of Colorado Boulder*