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Abstract <p>This paper theoretically investigated the thermodynamic properties of nitrogen diatomic molecule using pseudo harmonic plus Kratzer potential (PKP). For this goal, the Schrödinger equation (SE) have solved with the combined potentials applying the series expansion formalism and have obtained energy eigenvalues for the N<sub>2</sub>. Using determined eigenvalues, the partition function and thermodynamic properties such as mean energy, specific heat, Gibbs free energy and enthalpy have obtained and the calculated results have compared with experimental data. The comparisons reveal that there is a good agreement between them. Also, average deviations of the determined results and experimental data have obtained.</p>

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Theoretical Investigation of Gibbs Free Energy, Enthalpy, and Specific Heat of Nitrogen Using Pseudoharmonic Plus Kratzer Potential

  • 期刊论文

  • 发表日期：

    2025年9月1日

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  • A. Ghanbari

摘要

Abstract

This paper theoretically investigated the thermodynamic properties of nitrogen diatomic molecule using pseudo harmonic plus Kratzer potential (PKP). For this goal, the Schrödinger equation (SE) have solved with the combined potentials applying the series expansion formalism and have obtained energy eigenvalues for the N2. Using determined eigenvalues, the partition function and thermodynamic properties such as mean energy, specific heat, Gibbs free energy and enthalpy have obtained and the calculated results have compared with experimental data. The comparisons reveal that there is a good agreement between them. Also, average deviations of the determined results and experimental data have obtained.