COMPRESSIBILITY AND INTERMOLECULAR FORCES IN GASES: METHANE

Journal Article · Tue Jul 01 04:00:00 EDT 1958 · Physics of Fluids (U.S.)

DOI:https://doi.org/10.1063/1.1705891· OSTI ID:4293931

Schamp, Jr, H W; Mason, E A; Richardson, A C.B.; Altman, A

The compressibility of a sample of very pure methane has been measured with high precision tom 0 to 150 deg C and over a pressure range of about 20 to 230 atms. The precision attained is of the order of 1 part in 10/sup 4/. Small but consistent discrepencies exist between the present results and earlier msasurements, and it is believed these discrepancies are the result of a small impurity of ethane in the methane used earlier. The virial coefficients of methane are redetermined from the present measurements, and the intermolecular forces of methane are calculated from the second virial coefficient for several forms of force laws. These force laws are then used to calculate the third virial coefficient, the crystal properties at 0 deg K, and the viscosity for comparison with experiment. All the force laws fit the second virial coefficient very well, but some can be eliminated on the basis of the other properties. (auth)

• Research Organization: Univ. of Maryland, College Park
• Sponsoring Organization: USDOE
• NSA Number: NSA-12-017545
• OSTI ID: 4293931
• Journal Information: Physics of Fluids (U.S.), Journal Name: Physics of Fluids (U.S.) Vol. Vol: 1; ISSN PFLDA
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

COMPRESSIBILITY
GASES
PHYSICS
THERMODYNAMICS
VIRIAL COEFFICIENTS