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  Home > JCE Print > Journal of Chemical Education > Issues > 2000  > October  >
Information, Textbooks, Media, Resources
Computer Bulletin Board
Virial Coefficients Using Different Equations of State
Charles B. Wakefield and Constance Phillips
Department of Science, Mathematics and Computer Science, University of Texas of the Permian Basin, Odessa, TX 79762
Cover
October 2000
Vol. 77 No. 10
p. 1371
Abstract
Inexpensive desktop computers and powerful computer algebra software packages have made it possible for students and faculty to look at problems unthinkable a few years past because of the intensive algebra involved. One such problem is the derivation of expressions for the first three virial coefficients when using different equations of state. Using Mathematica, expressions for the virial coefficients at constant volume, constant pressure, and the fugacity have been derived for several equations of state. The results of these calculations are shown in two plots with experimental data. These plots serve as a check on the validity of the expressions derived using Mathematica. Our purpose is to illustrate the actual Mathematica instructions that lead to the virial coefficients for the well-known van der Waals equation of state. The set of Mathematica instructions for this equation of state will serve as a model for other more sophisticated equations of state. In our study we selected the Redlich-Kwong and the Gibbons, Laughton modification to the Redlich-Kwon equations of state.
More Information
*  Citation
 Wakefield, Charles B.; Phillips, Constance. J. Chem. Educ. 2000 77 1371.
*  Keywords
 Computational Chemistry; Physical Chemistry; Thermodynamics
*  History
 Created:
Last Updated:		 September 22, 2000
April 15, 2005
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