Viscosity of multicomponent mixtures of four complex gases

J. Kestin, H. E. Khalifa, W. A. Wakeham

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

In a series of earlier papers it has been established that the viscosities of the pure gases CH4, COcf2 2, CF4, and SF6 as well as those of their binary mixtures conform to the extended law of corresponding states formulated by Kestin, Ro, and Wakeham. In this paper, the kinetic-theory expressions for multicomponent gas mixtures are used in conjunction with the law of corresponding states and the appropriate binary scaling parameters σij and εij to generate the viscosities of several ternary and quatemary mixtures of these gases. The calculated viscosities are compared with direct measurements (accuracy ±0.2%) performed in an oscillating disk instrument in the temperature range 25-200°C. The comparison reveals that the generated data depart from the measured viscosities by a maximum of 0.5% and that the standard deviation is only 0.25% which is comparable with the experimental uncertainty. The validity of the calculation scheme presented for predictive purposes is thereby confirmed. It is emphasized that the calculation is based exclusively on previously published information and that it does not in any way utilize the data on multicomponent mixtures. Thus the calculation can be described as a true "prediction."

Original languageEnglish (US)
Pages (from-to)5186-5188
Number of pages3
JournalThe Journal of Chemical Physics
Volume65
Issue number12
StatePublished - 1976
Externally publishedYes

Fingerprint

Gases
Viscosity
viscosity
gases
Kinetic theory
Binary mixtures
kinetic theory
Gas mixtures
binary mixtures
gas mixtures
standard deviation
scaling
predictions
Temperature
temperature

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

Kestin, J., Khalifa, H. E., & Wakeham, W. A. (1976). Viscosity of multicomponent mixtures of four complex gases. The Journal of Chemical Physics, 65(12), 5186-5188.

Viscosity of multicomponent mixtures of four complex gases. / Kestin, J.; Khalifa, H. E.; Wakeham, W. A.

In: The Journal of Chemical Physics, Vol. 65, No. 12, 1976, p. 5186-5188.

Research output: Contribution to journalArticle

Kestin, J, Khalifa, HE & Wakeham, WA 1976, 'Viscosity of multicomponent mixtures of four complex gases', The Journal of Chemical Physics, vol. 65, no. 12, pp. 5186-5188.
Kestin J, Khalifa HE, Wakeham WA. Viscosity of multicomponent mixtures of four complex gases. The Journal of Chemical Physics. 1976;65(12):5186-5188.
Kestin, J. ; Khalifa, H. E. ; Wakeham, W. A. / Viscosity of multicomponent mixtures of four complex gases. In: The Journal of Chemical Physics. 1976 ; Vol. 65, No. 12. pp. 5186-5188.
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