Prediction of the Joule‐Thomson coefficients of a gas mixture from a generalized equation of state: The nitrogen‐ethane system

Using a thermodynamically consistent form of equation of state proposed by Foulkes, one can determine the virial coefficients of the pressure expansion from Joule‐Thomson coefficient data. A modification of the method has been applied for nitrogen and ethane within the temperature range from 50°C. to the normal boiling point. Mixture rules are proposed that allow reproduction of experimental data on μ for nitrogen‐ethane mixtures at pressures below the critical pressure of ethane.