Measurements of Interaction Second Virial Coefficients of Binary Mixtures of Inert Gases and Gases

1996 ◽  
Vol 100 (1) ◽  
pp. 73-79 ◽  
Author(s):  
K. Vatter ◽  
H. J. Schmidt ◽  
E. Elias ◽  
B. Schramm
Keyword(s):  
Binary Mixtures ◽  
Virial Coefficients ◽  
Inert Gases ◽  
Second Virial Coefficients

Second virial coefficients of fluorinated methanes CH4−xFx(x = 0–4) and their binary mixtures

2002 ◽  
Vol 4 (18) ◽  
pp. 4444-4448 ◽  
Author(s):  
Joachim A. Lamp ◽  
Bernhard F. Schramm ◽  
Shokry M. Saad ◽  
Samia A. El-Geubeily
Keyword(s):  
Binary Mixtures ◽  
Virial Coefficients ◽  
Second Virial Coefficients

The second virial coefficients of mixed organic vapours

1952 ◽  
Vol 210 (1103) ◽  
pp. 557-564 ◽  
Keyword(s):  
Hydrogen Bonding ◽  
Binary Mixtures ◽  
Diethyl Ether ◽  
Virial Coefficient ◽  
Second Virial Coefficient ◽  
Virial Coefficients ◽  
Corresponding States ◽  
Linear Variation ◽  
Second Virial Coefficients

The second virial coefficients of some binary mixtures of organic vapours have been measured at temperatures between 50 and 120° C. Mixtures of n -hexane with chloroform and of n -hexane with diethyl ether show a linear variation of second virial coefficient with composition. This is shown to be in accordance with prediction from the principle of corresponding states. Mixtures of chloroform with diethyl ether show a linear variation at 120° C, but pronounced curvature at lower temperatures. This is interpreted quantitatively as being due to association by hydrogen bonding with an energy of 6020 cal/mole.

Parameters of the Morse Potential from Second Virial Coefficients of Gases

1987 ◽  
Vol 42 (5) ◽  
pp. 447-450 ◽  
Author(s):  
Akira Matsumoto
Keyword(s):  
Temperature Dependence ◽  
Morse Potential ◽  
Virial Coefficient ◽  
Second Virial Coefficient ◽  
Virial Coefficients ◽  
Polyatomic Molecules ◽  
Inert Gases ◽  
Second Virial Coefficients ◽  
Analytic Expression

An analytic expression for the second virial coefficient in case of the Morse potential is derived. The parameters of the Morse potential are determined for eighteen species comprising inert gases, diatomic and polyatomic molecules, and mixtures of gases using experimental second virial coefficients. The calculated second virial coefficients based on the obtained Morse potential agree well with the empirical second virial coefficients and their temperature dependence.

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.

Sign in / Sign up

Export Citation Format

Share Document