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Enthalpy departure is the dimensionless value of (h[ideal]-h)/(RTc). h[ideal]-h is the difference in enthalpy between an ideal gas and a real gas at the same temperature and pressure. R is the gas constant and Tc is the critical temperature. The negative of the enthalpy departure for the Redlich-Kwong-Soave equation of state is:
Example:
Tr=1.2
Pr=1.5
omega=0.1
dh=EnthDep(Tr, Pr, omega)
{Solution: dh=1.462}