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A new equation of state for rubidium vapors at temperatures up to 1600 K and pressures up to 4 MPa

Authors
  • Mozgovoi, A. G.1
  • Popov, V. N.1
  • Fokin, L. R.1
  • 1 Russian Academy of Sciences (IVTAN), Joint Institute of High Temperatures, Moscow, 125412, Russia , Moscow (Russia)
Type
Published Article
Journal
High Temperature
Publisher
Kluwer Academic Publishers-Consultants Bureau
Publication Date
Jan 01, 2006
Volume
44
Issue
1
Pages
67–82
Identifiers
DOI: 10.1007/s10740-006-0008-0
Source
Springer Nature
Keywords
License
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Abstract

Statistical matching is performed of a wide range of diverse experimental data on the thermodynamic properties of saturated and superheated rubidium vapors at temperatures up to 1650 K. The parametric models used in the matching of data include the equation of state in the virial form and equations in the form of group expansions in terms of degrees of activity. Values of the second virial and group coefficients are obtained using new spectroscopic data on the singlet potential of rubidium atoms in the ground electron state. The equation of state in the form of expansion of density in terms of degrees of activity is used to calculate the tables of thermodynamic functions and estimate their confidence errors at temperatures up to 1600 K and pressures up to 4 MPa.

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