ISSN:
1572-9567
Keywords:
carbon dioxide
;
diffusion
;
gas mixtures
;
inversion
;
potential function
;
virial coefficients
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract A novel capillary flow viscometer has been constructed which is ultimately intended to be used for the measurement of the viscosities of corrosive gases such as hydrogen chloride up to pressures of 0.1 MPa. In the process of checking the accuracy of the instrument, we have measured the viscosities of carbon dioxide and argon/carbon dioxide mixtures relative to standard argon viscosities in the temperature range 301 to 521 K. The carbon dioxide viscosities have previously been used to determine a “viscosity average” well depth for the gas, which is an essential parameter for the Chapman-Enskog analysis of the argon/carbon dioxide mixture viscosities as described here. The argon/carbon dioxide interaction viscosities which result from this analysis are compared to corresponding values calculated from the mixture viscosities of Kestin and Ro, and to Mason-Monchick calculations performed by Maitland et al., using the potential energy surface of Pack et al. The interaction viscosities are also used to calculate diffusion coefficients, which are compared to Mason-Monchick diffusion coefficients of Maitland et al. and to diffusion coefficients calculated from the mixture viscosities of Kestin and Ro. An inverted isotropic potential is used to calculate second virial coefficients, which are compared with experiment and with calculations based on the potential energy surface of Hough and Howard and of Parker et al.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00500569
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