Comments on "Thermic and Caloric Equations of State with Small Number of Parameters"

TL;DR

This paper critiques the use of Keesom potential for calculating the second virial coefficient of polar molecules, highlighting errors and lack of molecular statistical mechanical basis in previous formulas for water and carbon dioxide.

Contribution

It provides a critical analysis of existing formulas, revealing their contradictions and errors, and clarifies the limitations of the Keesom potential in molecular calculations.

Findings

Keesom potential cannot accurately compute the second virial coefficient for polar molecules.

Previous formulas lack a solid molecular statistical mechanical foundation.

Errors and contradictions are identified in existing literature on this topic.

Abstract

It is shown that the potential of Keesom which depends on temperature cannot be used for calculate the second virial coefficient of polar molecules and the formulae for second virial coefficient of [2] have no molecular statistical mechanical base for water and carbon dioxide. The contradictions and errors of [2] are discussed.