AN ANNULAR RESONATOR USED TO MEASURE THE SPEED OF SOUND IN GASEOUS FLUOROALKANES - TRIFLUOROMETHANE AND HEXAFLUOROETHANE

Authors
JARVIS GK JOHNSON KA WALMSLEY SL
Citation
Gk. Jarvis et al., AN ANNULAR RESONATOR USED TO MEASURE THE SPEED OF SOUND IN GASEOUS FLUOROALKANES - TRIFLUOROMETHANE AND HEXAFLUOROETHANE, Journal of chemical and engineering data, 41(2), 1996, pp. 222-230
Citations number
26
Categorie Soggetti
Engineering, Chemical",Chemistry
Journal title
Journal of chemical and engineering data → ACNP
ISSN journal
00219568
Volume
41
Issue
2
Year of publication
1996
Pages
222 - 230
Database
ISI
SICI code
0021-9568(1996)41:2<222:AARUTM>2.0.ZU;2-3
Abstract
A simple annular resonator is presented in which it is possible to mea sure the speed of sound with an accuracy of about 0.05%. Results are p resented for gaseous trifluoromethane at nine temperatures in the rang e (294 to 318) K and for hexafluoroethane at six temperatures in the r ange (281 to 321) K. Measurements have been made in the pressure range (1 to 50) bar or 1 bar to 90% of the vapor pressure, which ever is hi gher. For trifluoromethane, the expected minimum near the critical poi nt has been observed. Both sets of experimental measurements have been compared with the speed of sound predicted by classical equations of state.