Temperature, pressure, volume, enthalpy, internal energy, entropy, Gibbs free energy, Helmholtz free energy are examples of thermodynamic state functions.
Heat and work are not state functions; they do depend on the process pathway.
From studying this module, you should now be able to:
Use state functions to solve energy balances.
Use the concept of state functions to calculate changes in state parameters.
Prepared by John L. Falconer, Department of Chemical and Biological Engineering, University of Colorado Boulder