Similarity of Thermodynamic Properties of Hydrocarbons in Supercritical Region
The paper considers the similarity of thermodynamic properties of hydrocarbons in supercritical state parameters. The criterion of thermodynamic similarity, which takes into account the structure of the molecule and the nature of the molecular interactions near the critical point, has been proposed. A numerical method for calculating the isobaric heat capacity of hydrocarbons and the program for its implementation have been described. The proposed correlation has been verified with the available experimental data.