Thermodynamics of Modified Cosmic Chaplygin Gas

TL;DR

This paper investigates the thermodynamic properties of modified cosmic Chaplygin gas within a homogeneous isotropic universe, analyzing stability, thermodynamic laws, and equations of state to understand its role in cosmic expansion.

Contribution

It provides a detailed thermodynamic analysis of modified cosmic Chaplygin gas, demonstrating its stability and adiabatic expansion in cosmological models.

Findings

Fluid is thermodynamically stable under various conditions

The third law of thermodynamics holds for this fluid

Fluid expands adiabatically with appropriate parameters

Abstract

In this paper, we examine the thermodynamic features of an exotic fluid known as modified cosmic Chaplygin gas in the context of homogeneous isotropic universe model. For this purpose, the behavior of physical parameters are discussed that help to analyze nature of the universe. Using specific heat formalism, the validity of third law of thermodynamics is checked. Furthermore, with the help of thermodynamic entities, the thermal equation of state is also discussed. The thermodynamic stability is explored by means of adiabatic, specific heat and isothermal conditions from classical thermodynamics. It is concluded that the considered fluid configuration is thermodynamically stable and expands adiabatically for an appropriate choice of parameters.