NFE Theory of Density of Expanded Liquid Sodium

S. M. Osman; W. H. Young

doi:10.1524/zpch.1988.156.Part_1.213

NFE Theory of Density of Expanded Liquid Sodium

S. M. Osman, W. H. Young

Research output: Contribution to journal › Article › peer-review

Abstract

NFE theory is used to fit the entropy and density of liquid Na along the liquid-vapour coexistence line below 1200 K. For this purpose, an empty core pseudopotential is assumed and a constant core radius chosen which accounts for the entropy. Also, the zeroth Fourier component is given a volume dependence which leads to the observed density variation. The description is then extrapolated beyond 1200 K; it continues to account for the density up to within 200 K of T_c, corresponding to a specific volume of about O. 55 of the critical value.

Original language	English
Pages (from-to)	213-218
Number of pages	6
Journal	Zeitschrift fur Physikalische Chemie
Volume	156
Issue number	Part_1
DOIs	https://doi.org/10.1524/zpch.1988.156.Part_1.213
Publication status	Published - 1988
Externally published	Yes

ASJC Scopus subject areas

Physical and Theoretical Chemistry

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10.1524/zpch.1988.156.Part_1.213

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AB - NFE theory is used to fit the entropy and density of liquid Na along the liquid-vapour coexistence line below 1200 K. For this purpose, an empty core pseudopotential is assumed and a constant core radius chosen which accounts for the entropy. Also, the zeroth Fourier component is given a volume dependence which leads to the observed density variation. The description is then extrapolated beyond 1200 K; it continues to account for the density up to within 200 K of Tc, corresponding to a specific volume of about O. 55 of the critical value.

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NFE Theory of Density of Expanded Liquid Sodium

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