Question

What is the molar excess entropy for a real gas defined as?

a) Internal energy at constant temperature and pressure
b) Enthalpy at constant temperature and volume
c) Difference in entropy between real and ideal gases
d) Gibbs free energy at constant temperature and pressure

Answer 1

The molar excess entropy for a real gas is the difference in entropy between real and ideal gases.

Step-by-step explanation:

The molar excess entropy for a real gas is defined as the difference in entropy between real and ideal gases. It is a measure of how much more disorder or randomness exists in a real gas compared to an ideal gas at the same conditions. The molar excess entropy takes into account the effects of intermolecular forces and non-ideal behavior in real gases.