Analytische Chemie: Eine indische Zeitschrift
ISSN (PRINT): 0974-7419

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A Simple Equation Of State For Calculating The Compressibility Factor Of Pure Fluids Based On The Virial EOS

A.Mohebbi, R.Mohammadikhah


In this study a new simple equation based on the virial equation has been developed to predict the compressibility factor of nonpolar pure fluids. This equation is a third order polynomial and takes into account reduced pressure, reduced temperature and the second virial coefficient. The result from this equation have been compared with experimental data, Lee- Kesler and two term virial equations. This comparison shows good agreement between the equation and the experimental data. This equation also predicts the critical compressibility factor very good. After validating the equation, other thermodynamic properties such as enthalpy and entropy have been calculated and the results have been compared with experimental data.


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