Chapter 10

Fugacity and Activity

10.a.  Fugacity

For ideal gases, the chemical potential is related to pressure (eqn. 8.26 or 8.27), molar concentration (eqn. 8.28) and mol fraction (eqn. 8.29).

 

μ = μ0 + RT ln p        (8.26)
Equation
Equation
Equation

A similar equation is desirable for real gases. The presence of intermolecular attractive and repulsive forces distinguishes a real gas from an ideal gas. For a real gas, the molar volume, V, is not equal to RT/P and so other ...

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