PVT properties and vapor-pressures of ordinary water substance in the critical region

T. Morita, H. Sato, M. Uematsu and K. Watanabe

Physica A: Statistical Mechanics and its Applications, 1989, vol. 156, issue 1, 436-453

Abstract: For the purpose of revealing the rather complicated thermodynamic surface of ordinary water substance in the critical region, a series of measurements of the PVT properties and the vapor-pressures of this technically important fluid have been performed by means of a constant-volume method. Ninety-three PVT measurements along 14 isotherms between 638.15 K and 652.15 K have been completed covering pressures from 18.5 to 39.2 MPa and densities from 122 to 610kg/m3. Twenty-six vapor-pressure measurements have also been performed at temperatures between 620.15 K and 647.05 K in the near vicinity of the critical point. Our measurements are compared with other available experimental data as well as with several equations of state. We also propose a new vapor-pressure correlation from the triple point to the critical point.

Date: 1989
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:156:y:1989:i:1:p:436-453

DOI: 10.1016/0378-4371(89)90133-7

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