Speed of sound in gaseous difluoromethane

Tsutomu Hozumi, Haruki Sato, Koichi Watanabe

Research output: Contribution to journalArticle

32 Citations (Scopus)

Abstract

The speed of sound in gaseous difluoromethane (HFC-32, CH2F2) has been measured by means of a spherical acoustic resonator. Sixty-seven speed of sound values were measured with an accuracy of ±0.01% at temperatures from 273 to 343 K and pressures from 20 to 250 kPa. The ideal-gas specific heats and the second acoustic virial coefficients have been determined on the basis of the speed of sound measurements. The second virial coefficients calculated from the present speed of sound measurements agree satisfactorily with literature values which were determined from pressure-volume-temperature measurements.

Original languageEnglish
Pages (from-to)493-495
Number of pages3
JournalJournal of Chemical and Engineering Data
Volume39
Issue number3
Publication statusPublished - 1994 Jul

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Acoustic wave velocity
Acoustic variables measurement
Specific heat of gases
Acoustic resonators
Volume measurement
Temperature measurement
Acoustics
difluoromethane
Temperature

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)

Cite this

Hozumi, T., Sato, H., & Watanabe, K. (1994). Speed of sound in gaseous difluoromethane. Journal of Chemical and Engineering Data, 39(3), 493-495.

Speed of sound in gaseous difluoromethane. / Hozumi, Tsutomu; Sato, Haruki; Watanabe, Koichi.

In: Journal of Chemical and Engineering Data, Vol. 39, No. 3, 07.1994, p. 493-495.

Research output: Contribution to journalArticle

Hozumi, T, Sato, H & Watanabe, K 1994, 'Speed of sound in gaseous difluoromethane', Journal of Chemical and Engineering Data, vol. 39, no. 3, pp. 493-495.
Hozumi T, Sato H, Watanabe K. Speed of sound in gaseous difluoromethane. Journal of Chemical and Engineering Data. 1994 Jul;39(3):493-495.
Hozumi, Tsutomu ; Sato, Haruki ; Watanabe, Koichi. / Speed of sound in gaseous difluoromethane. In: Journal of Chemical and Engineering Data. 1994 ; Vol. 39, No. 3. pp. 493-495.
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