Wilhoit Equation: Ideal-gas Heat Capacity Cpo and derived properties

Details of access to equation parameters:

Tref is the reference temperature for representation of enthalpy and entropy

I is the integration constant for calculation of enthalpy increments

J is the integration constant for calculation of entropies

So(298.15 K) is the entropy of the ideal gas at T = 298.15 K and p = 100 kPa