Excess second virial coefficients for binary mixtures of carbon dioxide with methane, ethane, and propane

1990 ◽  
Vol 35 (3) ◽  
pp. 314-317 ◽  
Author(s):  
Peter J. McElroy ◽  
Lim Leong Kee ◽  
Craig A. Renner
Keyword(s):  
Carbon Dioxide ◽  
Binary Mixtures ◽  
Virial Coefficients ◽  
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.

The statistical mechanics of assemblies of axially symmetric molecules - II. Second virial coefficients

1954 ◽  
Vol 221 (1147) ◽  
pp. 508-516 ◽  
Keyword(s):  
Carbon Dioxide ◽  
General Theory ◽  
Force Field ◽  
Virial Coefficient ◽  
Second Virial Coefficient ◽  
Virial Coefficients ◽  
Intermolecular Potential ◽  
Crystal Data ◽  
Axially Symmetric ◽  
Second Virial Coefficients

A general theory of the second virial coefficient of axially symmetric molecules is developed, the directional part of the intermolecular field being treated as a perturbationon the central-force part. The method is applicable to any type of intermolecular potential, particular models of directional interaction being obtained by suitable choices of parameters. Simple expressions are given for the second virial coefficient due to several types of directional force. The theory is illustrated by some calculations on the force field of carbon dioxide and its relation to the second virial coefficient and crystal data. These indicate that there is strong quadrupole interaction between carbon dioxide molecules.

Thermal conductivities of organic vapours

1950 ◽  
Vol 200 (1061) ◽  
pp. 262-271 ◽  
Keyword(s):  
Carbon Dioxide ◽  
Thermal Conductivity ◽  
Diethyl Ether ◽  
Methyl Alcohol ◽  
Virial Coefficients ◽  
Second Virial Coefficients ◽  
Reversible Dimerization ◽  
Quantitative Explanation ◽  
Dimerization Process ◽  
Quantitative Treatment

The variation of thermal conductivity with pressure has been investigated for a number of organic vapours at pressures between 50 and 700 mm. and at temperatures of 25, 66 and 85° C. Acetaldehyde and acetonitrile show fairly large linear increases of thermal conductivity with rise in pressure, which diminish markedly as temperature rises. This is interpreted as being due to dimerization, and a quantitative treatment is given in terms of values of K p and ∆ H for the reversible dimerization process, which are derived from previous work on the second virial coefficients of these vapours. Ethyl chloride shows similar behaviour to a much smaller degree. Methyl alcohol and acetone show fairly large non-linear increases, which diminish at higher temperatures, and which are interpreted as being due to association to polymers higher than the dimer. Benzene, cyclohexane, n -hexane, chloroform and diethyl ether, together with air and carbon dioxide, all show comparatively small linear increases, which become larger as temperature rises. No satisfactory quantitative explanation was found for this effect, which appears to involve factors other than simple convection. Values of the absolute thermal conductivity, corrected to zero pressure, are given for all vapours investigated.

scholarly journals Interaction second virial coefficients for six binary systems containing carbon dioxide, methane, ethylene and propylene at 125.DEG.C.

1982 ◽  
Vol 15 (2) ◽  
pp. 85-90 ◽  
Author(s):  
KAZUNARI OHGAKI ◽  
YUKIHIRO NAKAMURA ◽  
HIDEYUKI ARIYASU ◽  
TAKASHI KATAYAMA
Keyword(s):  
Carbon Dioxide ◽  
Binary Systems ◽  
Virial Coefficients ◽  
Second Virial Coefficients
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