The speed of sound in gaseous propane has been measured along seven isotherms in the temperature range 225 K to 375 K at pressures up to the lower of 0.85 MPa and 80 per cent of the vapour pressure. The results have a precision of 0.001 per cent or better and an overall uncertainty, including an all
The speed of sound in gaseous argon at temperatures between 110 K and 450 K and at pressures up to 19 MPa
โ Scribed by A.F. Estrada-Alexanders; J.P.M. Trusler
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 485 KB
- Volume
- 27
- Category
- Article
- ISSN
- 0021-9614
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โฆ Synopsis
The speed of sound u in gaseous argon has been measured along 21 isotherms at temperatures T between 110 K and 450 K. At Te150 K, the greatest pressure on each isotherm was the lesser of 19 MPa and the pressure at which the estimated density was half its critical value. Below T=150 K, the greatest pressure on each isotherm was limited to that at which the estimated density was about 0.8 of the saturated-vapour density. The measurements were made using a spherical acoustic resonator and have an estimated accuracy which varies from 1โข10 -5 โขu at low pressures to 7โข10 -5 โขu at the greatest pressure on the isotherm closest to the critical temperature. Second, third, and fourth acoustic virial coefficients have been obtained from the results.
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