Compressibility of Gases. I. The Burnett Method. An Improved Method of Treatment of the Data. Extension of the Method to Gas Mixtures

Abstract

The theory of the Burnett method of measuring the compressibility of gases is discussed, and an analytical method of treating the data is presented. Determinations of the compressibility factor at 30°C for helium, nitrogen, and carbon dioxide show the convenience of the analysis and the precision that may be obtained by the method. Extension of the Burnett measurement to gas mixtures is also reported for some binary combinations of the three gases.

Ab initio intermolecular potential energy surface for the CO2—N2 system and related thermophysical properties

“…To account for quantum effects, the intermolecular pair potential V in Eq. 7was replaced by the quadratic Feynman-Hibbs data sets 39,40,47,50 obtained by experimentalists with a well-established reputation agree within our stated uncertainty. However, the few available experimental data below ambient temperature often lie significantly outside our uncertainty interval, in particular, the data of Brewer, 43 of Ng, 44 and, at very low temperatures, of Yakimenko et al 45 At ambient and higher temperatures, the data of Cottrell et al 41 and the datum of Edwards The transport properties of a dilute gas mixture can be determined using the kinetic theory of molecular gases.…”

High-precision virial coefficients of argon and carbon dioxide from integration of speed of sound data in the pressure–temperature domain

“…Absolute deviation, with respect to the new determination C num of this work, of formerly-reported data for the third virial coefficient of carbon dioxide. The symbols indicate the source: filled squares [46], down-pointing emtpy triangles [54], empty diamonds [55], clubs [56], empty squares [47], empty circles [57], hearts [60], spades [58], downpointing solid triangles [49], filled circles [42], crosses [51], solid diamonds [52], up-pointing solid triangles [59] and uppointing empty triangles [53]. The solid lines indicate the uncertainty of C num .…”

Determination of interaction second virial coefficients; He‐CO2 system

“…The He-CO, interaction virial coefficient has received some attention in the past. The sources we were able to identify include: Pfefferle et al (1955), Cottrell and Hamilton (1956), Harper andMiller (1957), Brewer (1967), Weems and Miller (1969), Weems and Howard (1970), Linshits e t al. (1975), Bellomy (1976), and Pak and Schultz (1978).…”