Quantum corrections for second virial coefficients using different Lennard-Jones (m − n) potentials and application to helium

1965 ◽  
Vol 14 (3) ◽  
pp. 197-198 ◽  
Author(s):  
R. Haberlandt
Keyword(s):  
Virial Coefficients ◽  
Quantum Corrections ◽  
Second Virial Coefficients ◽  
Lennard Jones

Predictions of adiabatic Joule–Thomson coefficients based on modern potentials for noble gases

1976 ◽  
Vol 54 (16) ◽  
pp. 2617-2627 ◽  
Author(s):  
Vijay P. S. Nain ◽  
Ronald A. Aziz
Keyword(s):  
Experimental Data ◽  
Virial Coefficients ◽  
Inert Gases ◽  
Quantum Corrections ◽  
Intermolecular Potentials ◽  
Second Virial Coefficients ◽  
Empirical Relations ◽  
Pressure Region ◽  
Thomson Coefficient ◽  
Realistic Potentials

The predictions of the Joule–Thomson coefficient for the inert gases on the basis of numerous intermolecular potentials are calculated and compared with directly measured experimental data and derived values from p–V–T measurements. For all Systems, the agreement is good except for TFD potentials derived by Gustafsson for He and Ne. We have also shown that the kinetic energy corrections in the low pressure region are not as high as those suggested by Gustafsson. Inversion temperatures are also calculated and recommended values are presented. Also presented are empirical relations which give as a function of temperature, second virial coefficients including the first two quantum corrections for many of the realistic potentials.

Contributions of Nonspherical Interactions to the Second Virial Coefficients of H2 and HD Gases

1971 ◽  
Vol 49 (20) ◽  
pp. 2547-2551 ◽  
Author(s):  
Asit B. Rakshit ◽  
Sucheta Chowdhury
Keyword(s):  
Virial Coefficient ◽  
Second Virial Coefficient ◽  
Virial Coefficients ◽  
Quantum Effects ◽  
Quantum Corrections ◽  
Second Virial Coefficients

The second virial coefficient B(T) of H2 and HD gases, including the quantum corrections, have been evaluated by considering spherical as well as the different nonspherical interactions arising mainly from the permanent and induced electric moments of the molecules. The calculations are valid at intermediate temperatures where the quantum effects are comparatively small. For H2 the present results have been compared with the earlier ones of Wang Chang.

scholarly journals Comment on Koo–Hsu Second Virial Coefficients Using a Modified Lennard‐Jones (6, n, γ) Potential

1971 ◽  
Vol 54 (9) ◽  
pp. 4139-4140
Author(s):  
R. E. Caligaris ◽  
C. F. Mosquera ◽  
A. E. Rodriguez
Keyword(s):  
Virial Coefficients ◽  
Second Virial Coefficients ◽  
Lennard Jones
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