Is the thermodynamic behavior of the noble fluids consistent with the Principle of Corresponding States?

TL;DR

This paper investigates whether the thermodynamic properties of noble fluids align with the Principle of Corresponding States, highlighting deviations caused by dimerization in heavy noble gases and analyzing related thermodynamic characteristics.

Contribution

It provides thermodynamic evidence of dimerization in heavy noble gases and examines its impact on the applicability of the Principle of Corresponding States.

Findings

Dimerization causes deviations from PCS in heavy noble gases.

Rectilinear diameter of entropy and density are sensitive to dimerization.

Thermodynamic behaviors reflect molecular interactions in noble gases.

Abstract

The applicability of the Principle of Corresponding States (PCS) for the noble fluids is discussed. We give the thermodynamic evidences for the dimerization of the liquid phase in heavy noble gases like argon, krypton etc. which manifest itself in deviation from the PCS. The behavior of the rectilinear diameter of the entropy and the density is analyzed. It is shown that these characteristics are very sensitive to the dimerization process which takes place in the liquid phase of heavy noble gases.