Liquid-gas phase transtion to first order of an argon like fluid modeled by Sutherland potential

TL;DR

This study models an argon-like fluid using Sutherland potential, analyzing its liquid-gas phase transition with improved equations of state and phase diagrams compared to previous methods.

Contribution

Introduces five hypotheses for the total potential and provides a simplified, more accurate approach to modeling phase transitions in argon-like fluids.

Findings

Accurate phase diagrams for argon-like fluids.

Enhanced equations of state outperform Mayor's Cluster Expansion.

Clear analysis of liquid-gas coexistence phenomena.

Abstract

In this paper, an argon-like canonical system is studied. We introduce five hypothesis to deal with the total potential of the system. Then the balanced liquid-gas coexistence phenomenon is analyzed. Good equations of state and phase diagram are given. Some of our results is better and more brief than Mayor's Cluster Expansion.