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Translational partition functions and equilibrium constants of atomic and molecular particles

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Abstract

Some special features of the calculation of partition functions for the objects possessing finite dimensions are considered. It is shown that atomic, molecular, and more extended clusterlike objects are subject to certain spatial limitations related to the initial assumptions employed in the statistical approach. The values calculated for a material point or an object such as electron are overstated when applied to atomic particles. The classical expressions for the kinetic and statistical equilibrium constants of the reactions of formation and dissociation of diatomic molecules are compared. The observed discrepancies are eliminated by introducing corrections into formulas for the translational partition functions.

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Authors and Affiliations

  1. Baltic State Technical University, St. Petersburg, Russia

    S. I. Igolkin

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  1. S. I. Igolkin
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Translated from Pis’ma v Zhurnal Tekhnichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l} \) Fiziki, Vol. 27, No. 13, 2001, pp. 44–49.

Original Russian Text Copyright © 2001 by Igolkin.

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Igolkin, S.I. Translational partition functions and equilibrium constants of atomic and molecular particles. Tech. Phys. Lett. 27, 548–550 (2001). https://doi.org/10.1134/1.1388939

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  • DOI: https://doi.org/10.1134/1.1388939

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