Thermodynamic response functions in a cell fluid model with Curie-Weiss interaction. I. Supercritical region

2025/11/26 by M. P. Kozlovskii, Kozlovskii, M. P., O. A. Dobush +7
Earth and Planetary Sciences · Engineering · Materials Science · #FOS: Physical sciences #High-pressure geophysics and materials #Material Dynamics and Properties #Phase Equilibria and Thermodynamics #Statistical Mechanics (cond-mat.stat-mech)

paper · pdf · doi:10.48550/arxiv.2511.21485

openalex publication_date 2025/11/26 · openalex created_date 2025/11/28 · openalex updated_date 2026/07/28

Abstract

Thermodynamic response functions, including the isothermal compressibility, the thermal pressure coefficient, and the thermal expansion coefficient, isochoric and isobaric heat capacities are explicitly derived for a many-particle system interacting through a Curie-Weiss-type potential. These calculations are based on an exact equation of state previously obtained for a cell fluid model in the grand canonical ensemble. The resulting response functions are presented graphically as functions of temperature, density, and chemical potential within the supercritical region.

Citations

• Entropy of the cell fluid model with Curie-Weiss interaction
• A multiple occupancy cell fluid model with competing attraction and repulsion interactions
• Influence of microscopic parameters on phase behavior of a cell model with Curie-Weiss interaction
• A new special function related to a discrete Gauss-Poisson distribution and some physics of the cell model with Curie-Weiss interactions
• Phase behavior of a cell model with Curie-Weiss interaction
• Equation of state of a cell fluid model with allowance for Gaussian fluctuations of the order parameter
• Phase behavior of a cell fluid model with modified morse potential

Cited by

• Microscopic description of the liquid-gas coexistence curve for Morse fluids in the immediate vicinity of the critical point

Related

• Thermodynamic response functions in a cell fluid model
• Equation of state of a cell fluid model with allowance for Gaussian fluctuations of the order parameter
• Entropy of the cell fluid model with Curie-Weiss interaction
• Phase behavior of a cell model with Curie-Weiss interaction
• A multiple occupancy cell fluid model with competing attraction and repulsion interactions