THERMODYNAMIC PROPERTIES OF SIMPLE GASES FROM MIE (N-6) POTENTIAL FUNCTION

Authors

  • K O Monago Department of Pure and Industrial Chemistry, University of Port Harcourt, P M B 5323 Choba, Port Harcourt, Nigeria

Abstract

A fourth order virial equation of state was combined with the Mie (n-6) potential function and the triple-dipole term to determine the volumetric and caloric thermodynamic properties of argon in the gas phase. The parameters in the molecular model were determined in a fit to speed of sound data. The equation of state predicted second and third volumetric and acoustic virial coefficients of argon with good accuracy, but failed to predict fourth virial coefficients quantitatively. The equation of state predicted the P-V-T properties of argon with reasonable accuracy up to about six-tenth of the critical density (rc). The (n-6) potential is, therefore, not only superior to the Lennard-Jones (12-6) potential, but can be used to perform exploratory calculations in practical problems.

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Published

2017-02-11

How to Cite

Monago, K. O. (2017). THERMODYNAMIC PROPERTIES OF SIMPLE GASES FROM MIE (N-6) POTENTIAL FUNCTION. Journal of Chemical Society of Nigeria, 40(1). Retrieved from http://www.journals.chemsociety.org.ng/index.php/jcsn/article/view/12

Issue

Vol. 40 No. 1 (2015)

Section

Articles

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Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution (CC-BY) 4.0 License that allows others to share the work with an acknowledgment of the work’s authorship and initial publication in this journal.