Ab initio potential energy curve for the neon atom pair and thermophysical properties for the dilute neon gas. II. Thermophysical properties for low-density neon
Publication date
2008-03-01
Document type
Research article
Author
Organisational unit
Universität Rostock
Scopus ID
Series or journal
Molecular Physics
Periodical volume
106
Periodical issue
6
First page
813
Last page
825
Peer-reviewed
✅
Part of the university bibliography
Nein
Keyword
Neon gas property standards
Neon pair potential
Second and third pressure virial coefficients
Thermal conductivity
Viscosity
Abstract
A neon-neon interatomic potential energy curve determined from quantum-mechanical ab initio calculations and described with an analytical representation (R. Hellmann, E. Bich, and E. Vogel, Molec. Phys. 106, 133 (2008)) was used in the framework of the quantum-statistical mechanics and of the corresponding kinetic theory to calculate the most important thermophysical properties of neon governed by two-body and three-body interactions. The second and third pressure virial coefficients as well as the viscosity and thermal conductivity coefficients, the last two in the so-called limit of zero density, were calculated for natural Ne from 25 to 10,000 K. Comparison of the calculated viscosity and thermal conductivity with the most accurate experimental data at ambient temperature shows that these values are accurate enough to be applied as standard values for the complete temperature range of the calculations characterized by an uncertainty of about 0.1% except at the lowest temperatures.
Version
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