Authors

The second virial coefficient of tetrafluoromethane

UDC 536.7

The second virial coefficient of tetrafluoromethane

Kletsky A. V., Mitropov V.V.

Abstract
The equation for the second virial coefficient of the R14 refrigerant is presented as a function of temperature. Deviations between the values of the second virial coefficient obtained from the experimental data and calculations using this equation within the temperature range of –70 оС to 500 оС are, as a rule, less than 1 cm3/mol.

Keywords: second virial coefficient, tetrafluoromethane.

All references

1. MacCormack K.E., Schneider W.G. Compressibility of gases at pressures up to 50 atm. V. Carbon tetrafluoride in the temperature range 0-400 oC. J. Chem. Phys., 1951, vol. 19, p. 845.

2. Douslin D.R., Harrison R.H., Moore R.T., McCollough I.P. Te-trafluoromethane: p,v,T and intermolecular potential energy relations. J. Chem. Phys. 1961, vol. 35, p.1 357.

3. Kalfoglou N.K., Miller J.G. Mixtures of spherically symmetric molecules at higher temperatures. J.Phys.Cham., 1967, vol. 71, p. 1256.

4. Lange H.B., Stein F.P. Volumetric behavior of a polar-nonpolar gas mixture: trifluoromethane-tetrafluoromethane system. J. Chem. Eng. Data, 1970, vol. 15, p. 56.

5. Bignell C.M., Dunlop P.J. Second virial coefficients for fluorome-thanes and their binary mixtures with helium and argon. J. Chem. Eng. Data, 1993, vol. 38, p. 139.

6. Lamp J.A., Schramm B.F., Saad S.M., El-Geubeily. Second virial coefficients of fluorinated methanes and their binary mixtures. Phys. Chem. Chem. Phys, 2002, vol. 4, p. 4444.

7. Taran V.N. Holodil'naja tehnika i tehnologija, 1967. Vol. 4, p. 35.

8. Altunin V.V.i dr. Teplofizicheskie svojstva freonov. T. 2. – M.: Izd.standartov, 1985. 264 p.

9. Rubio R.G., Calado J.C.G., Clancy P., Streett W.B. A theoretical and experimental study of the equation of state of tetrafluoromethane.J.Phys.Chem., 1985, vol. 89, No. 21, p.4637

10. Platzer B., Polt A., Maurer G. Thermophysical properties of refrigerants. Springer-verlag, 1990, Berlin.

11. Penocello S.G., Lemmon E.W., Jacobson R.T., Shan Z. A fun-damental equation for trifluoromethane (R23). J. Phys. Chem. Ref. Data, 2003, vol. 32, No. 4, p.1473

12. Klecky A.V., Mitropov V.V. Vestnik Mezhdunarodnoj akademii holoda.2009. No 1. pp. 22-24.

13. Klecky A.V., Mitropov V.V. Vestnik Mezhdunarodnoj akademii holoda.2012. No 2. pp. 19-20.

14. Klecky A.V., Mitropov V.V. Vestnik Mezhdunarodnoj akademii holoda.2011. No 4. pp. 49-53.

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