Example 8.5. Estimation of Second Virial Coefficients Nonpolar Compounds

5 Example 8.5. Estimation of Second Virial Coefficients Nonpolar Compounds 

Tsonopoulos (1974 1975) proposed the following Pitzer-type expression for the estimation of second virial coefficients of nonpolar compounds  

A simpler expression is given by Abbott in Smith and Van Ness (1975)  

Calculate B values, using these two expressions, for n-butane (nC4) from 250 K 

The following observations can be made from the prediction results, presented in Table 8.E.5 and obtained with the Program PVT presented in Appendix E. 

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