Fugacities Part 29


S as function of P and T. Integration of (92) again, for pure phase component yields:



(112)

Expansion in an ideal gas and a deviation term:


(113)

Solving the last integral in (113):


(114)

Extending the lower integration limit:


(115)

The first two terms of (110) are the S of a pure hypothetical ideal gas. If the system is a mixture ideal mixing entropy has to be added


(116)


(117)