Fugacities Part 11

V and T as state variables
Because most EOS are explicit in P instead of V, the Helmholtz free energy has to be used to calculate µi. The line of arguments is, however, identical to the one given for the Gibbs free energy. The dependence of A on V is given by integrating (3):


Pure fluids. Expanding Equation (34) using the ideal gas law for a pure phase component we get:


Splitting the first integral by expanding the upper integration boundary to infinity (the lower and the higher integration boundaries are switched; therefore, the sign changes) and solving the second we get:


This website processes personal data (e.g. browsing data or IP addresses) and use cookies or other identifiers, which are necessary for its functioning and required to achieve the purposes illustrated in the cookie policy.
You accept the use of cookies or other identifiers by closing or dismissing this notice, by clicking a link or button or by continuing to browse otherwise.

This site is GPDR compliant.

Privacy policy: no personal data and no comments are collected. No data are collected for statistical purposes.