Accession Number:

AD0719749

Title:

Pressure-Volume-Temperature Relationships of Gases Virial Coefficients

Descriptive Note:

Final rept. Jul 1969-Oct 1970

Corporate Author:

NATIONAL BUREAU OF STANDARDS WASHINGTON DC HEAT DIV

Report Date:

1971-03-01

Pagination or Media Count:

54.0

Abstract:

Tables of second virial coefficients as functions of temperature are presented for 14 gases. These gases are mainly noble gases and constituents of air. In most cases, these are based on a reexamination of the original P-V-T data. Where necessary and possible, these data have been refitted and improved experimental virials determined. In the case of eight of these gases, it has been possible to fit the experimental second virials to those predicted by the m,6 potential function and potential parameters determined. In almost all cases, an optimum fit was obtained for m 18. The optimum potential function was used for extrapolating the tables somewhat beyond the experimental range, and for obtaining temperature derivatives of B. In the case of the other six substances virial coefficients predicted by the m,6 functions were used as a smoothing aid. Experimental third virial coefficients are presented at the experimental temperatures. A table of Boyle and Joule-Thomson inversion temperatures is also presented.

Subject Categories:

  • Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE