The Dieterici alternative to the van der Waals approach for equations of state: second virial coefficients

2002 ◽  
Vol 4 (6) ◽  
pp. 919-921 ◽  
Author(s):  
Richard J. Sadus
Keyword(s):  
Equations Of State ◽  
Van Der Waals ◽  
Virial Coefficients ◽  
Second Virial Coefficients

scholarly journals Pressure dependence of the equilibrium constant of ammonia

1942 ◽  
Vol 179 (979) ◽  
pp. 433-438 ◽  
Keyword(s):  
Equilibrium Constant ◽  
High Temperatures ◽  
Pressure Dependence ◽  
Van Der Waals ◽  
Virial Coefficients ◽  
Numerical Results ◽  
Second Virial Coefficients ◽  
Imperfect Gas ◽  
Theory And Experiments ◽  
Good Agreement

The pressure dependence of the equilibrium constant of a slightly imperfect gas is calculated. At sufficiently high temperatures, the constants occurring in the formula for the equilibrium constant can be expressed in terms of the van der Waals constants. The latter can be obtained from the second virial coefficients. Numerical results for ammonia give good agreement between the theory and experiments.

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