Application of the group contribution concept to the Kihara potential for the calculation of second virial coefficients

1989 ◽  
Vol 47 (1) ◽  
pp. 47-65 ◽  
Author(s):  
Scott W. Campbell
Keyword(s):  
Virial Coefficients ◽  
Group Contribution ◽  
Second Virial Coefficients ◽  
Kihara Potential

An Improved Group Contribution Method for the Prediction of Second Virial Coefficients

2014 ◽  
Vol 53 (35) ◽  
pp. 13804-13809 ◽  
Author(s):  
Giovanni Di Nicola ◽  
Matteo Falone ◽  
Mariano Pierantozzi ◽  
Roman Stryjek
Keyword(s):  
Virial Coefficients ◽  
Group Contribution ◽  
Group Contribution Method ◽  
Second Virial Coefficients

The Bender Equation of State and Virial Coefficients

2000 ◽  
Vol 65 (9) ◽  
pp. 1464-1470 ◽  
Author(s):  
Anatol Malijevský ◽  
Tomáš Hujo
Keyword(s):  
Equation Of State ◽  
Virial Coefficient ◽  
Virial Coefficients ◽  
Low Density ◽  
Second Virial Coefficients ◽  
The Third ◽  
Temperature Dependences ◽  
Experimental Values

The second and third virial coefficients calculated from the Bender equation of state (BEOS) are tested against experimental virial coefficient data. It is shown that the temperature dependences of the second and third virial coefficients as predicted by the BEOS are sufficiently accurate. We conclude that experimental second virial coefficients should be used to determine independently five of twenty constants of the Bender equation. This would improve the performance of the equation in a region of low-density gas, and also suppress correlations among the BEOS constants, which is even more important. The third virial coefficients cannot be used for the same purpose because of large uncertainties in their experimental values.

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