Fugacities Part 2


Fugacities
Let us start from the definitions of Helmholtz and Gibbs free energies
A and G using the inner energy U, the enthalpy H and the entropy S.


(1)


(2)

In the following the partial derivatives of A and G in respect to P and T at constant composition ni


(3)


(4)


(5)

and the chemical potentials µi


(6)

are used.