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A Critical Review of Second Virial Coefficients for Water Vapor with Air and With Argon



Peter H. Huang, Allan H. Harvey


This work reviews the current state of knowledge for the second virial coefficients of water vapor with air and with argon. Comparative tabulations of the coefficients are given from -20 degrees C to 100 degrees C along with the associated uncertainties. For Ar-H2O a pair potential produced by ab initio quantum calculations achieves a smaller uncertainty in the second virial coefficient than experiment. For Air-H2O, the existing experimental data are fairly well established in this temperature range, with uncertainties small enough for most purposes.
Proceedings Title
Proceedings TEMPMEKO 2004
Conference Dates
June 22-25, 2004
Conference Location
Conference Title


molecular interaction, quantum calculation, second virial coefficients, uncertainty, water vapor with air, water vapor with argon


Huang, P. and Harvey, A. (2005), A Critical Review of Second Virial Coefficients for Water Vapor with Air and With Argon, Proceedings TEMPMEKO 2004, Cavtag-Dubrovnik, -1, [online], (Accessed May 28, 2024)


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Created August 1, 2005, Updated February 19, 2017