Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Accurate Prediction of Thermodynamic Properties for Polyatomic Molecules

Version 1 : Received: 29 December 2023 / Approved: 3 January 2024 / Online: 4 January 2024 (05:37:09 CET)

How to cite: Horchani, R.; Al Kharusi, O.; Ikot, A.N.; Okorie, U.S.; Jelassi, H. Accurate Prediction of Thermodynamic Properties for Polyatomic Molecules. Preprints 2024, 2024010249. https://doi.org/10.20944/preprints202401.0249.v1 Horchani, R.; Al Kharusi, O.; Ikot, A.N.; Okorie, U.S.; Jelassi, H. Accurate Prediction of Thermodynamic Properties for Polyatomic Molecules. Preprints 2024, 2024010249. https://doi.org/10.20944/preprints202401.0249.v1

Abstract

We present a precise and universal method for anticipating the thermodynamic characteristics of polyatomic molecules. Unlike conventional computational approaches that rely on numerous experimental spectroscopy or calorimetry data, our model only utilizes a small number of molecular constants. We accurately predicted the values of entropy, enthalpy, specific heat, and Gibbs free energy for boron trifluoride, which were in excellent accordance with the available experimental data. This investigation introduces a new approach to deal with the anharmonic vibrations of polyatomic molecules

Keywords

Molar entropy; Partition function; polyatomic molecules

Subject

Physical Sciences, Atomic and Molecular Physics

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