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 language | English |
|---|---|
| Pages (from-to) | 493-495 |
| Number of pages | 3 |
| Journal | Journal of Chemical and Engineering Data |
| Volume | 39 |
| Issue number | 3 |
| Publication status | Published - 1994 Jul |
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ASJC Scopus subject areas
- Chemical Engineering(all)
- Chemistry(all)
Cite this
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 journal › Article
}
TY - JOUR
T1 - Speed of sound in gaseous difluoromethane
AU - Hozumi, Tsutomu
AU - Sato, Haruki
AU - Watanabe, Koichi
PY - 1994/7
Y1 - 1994/7
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0028468338&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0028468338&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0028468338
VL - 39
SP - 493
EP - 495
JO - Journal of Chemical and Engineering Data
JF - Journal of Chemical and Engineering Data
SN - 0021-9568
IS - 3
ER -