Vapor Pressures, Gas-Phase PVT Properties, and Second Virial Coefficients for 1,1,1-Trifluoroethane

1995 ◽  
Vol 40 (4) ◽  
pp. 887-890 ◽  
Author(s):  
Heng-Liang Zhang ◽  
Haruki Sato ◽  
Koichi Watanabe
Keyword(s):  
Gas Phase ◽  
Virial Coefficients ◽  
Vapor Pressures ◽  
Pvt Properties ◽  
Second Virial Coefficients

Correlation of PVT properties of homologous series with critical constants

1971 ◽  
Vol 24 (3) ◽  
pp. 465 ◽  
Author(s):  
MV Pandya ◽  
AG Williamson
Keyword(s):  
Homologous Series ◽  
General Equation ◽  
Virial Coefficients ◽  
Corresponding States ◽  
Pvt Properties ◽  
Second Virial Coefficients ◽  
Critical Constants

A general equation based upon a modified principle of corresponding states and the principle of congruence is used to correlate the second virial coefficients of n-alkanes and their mixtures with each other and with hydrogen. The same procedure is extended to perfluoro-n-alkanes and alk-l-enes.

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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