Thermodynamics and the Four Thermodynamic Potentials

References: http://johncarlosbaez.wordpress.com/2012/01/23/classical-mechanics-versus-thermodynamics-part-2/ http://qed.princeton.edu/main/PlasmaWiki/Thermodynamic_Potentials http://en.wikipedia.org/wiki/Thermodynamic_potential http://en.wikipedia.org/wiki/Maxwell_relations [*7.80] <>