The single equation of state of liquid 3He-4He mixtures in a temperature range 2.25-4.2 K at pressures up to 10 MPa over the full concentration range

The single equation of state of liquid 3He-4He mixtures in a temperature range 2.25-4.2 K at pressures up to 10 MPa over the full concentration range

The available experimental PVT-data for 3He-4He mixtures and pure 3He, 4He in the homogenous liquid phase in a temperature range2.25-4.2 K at pressures from 0 to 10 MPa, are used to derive an analytical form of the single empirical equation of state of the system 3He-4He. For this purpose an approxi...

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Veröffentlicht in:Fizika nizkih temperatur (Kiev) 2004-01, Vol.30 (9), p.928-931
Hauptverfasser: Sibileva, R M, Meriuz, A V, Karnatsevich, L V, Khazhmuradov, M A
Format: Artikel
Sprache:rus
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Zusammenfassung:The available experimental PVT-data for 3He-4He mixtures and pure 3He, 4He in the homogenous liquid phase in a temperature range2.25-4.2 K at pressures from 0 to 10 MPa, are used to derive an analytical form of the single empirical equation of state of the system 3He-4He. For this purpose an approximation expression is selected: a mathematical program is made, and the fitting factors of the expression P(V,T,c) are calculated. The average difference between the experimental P data and the P predicted by the single equation of state is plus/minus 0.015 MPa.
ISSN:0132-6414