New equation of state for double Yukawa potential with application to Lennard-Jones fluids

M. Bahaa Khedr; S. M. Osman; M. S. Al Busaidi

doi:10.1080/00319100802428494

New equation of state for double Yukawa potential with application to Lennard-Jones fluids

M. Bahaa Khedr, S. M. Osman, M. S. Al Busaidi

Physics

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

11 Citations (Scopus)

Abstract

We present a simple but accurate equation of state for double Yukawa fluids based on the variational series mean spherical approximation (VSMSA). This allows us to investigate the vapour-liquid equilibrium and its related thermodynamic properties. The comparisons with computer simulation results of the Lennard-Jones (LJ) potential suggest the importance of treating the attractive tail of the potential accurately via VSMSA. The estimated reduced critical parameters T_C = 1.342, ρ_C = 0.29 and P_C = 0.135 are in good agreement with other theoretical and computer simulation results for the LJ system.

Original language	English
Pages (from-to)	237-249
Number of pages	13
Journal	Physics and Chemistry of Liquids
Volume	47
Issue number	3
DOIs	https://doi.org/10.1080/00319100802428494
Publication status	Published - Jun 2009

Keywords

Equation of state of simple liquids
Liquid-vapour coexistence
Properties of double Yukawa potential
Theory of simple liquids

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Physical and Theoretical Chemistry
Materials Chemistry

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10.1080/00319100802428494

Cite this

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title = "New equation of state for double Yukawa potential with application to Lennard-Jones fluids",

abstract = "We present a simple but accurate equation of state for double Yukawa fluids based on the variational series mean spherical approximation (VSMSA). This allows us to investigate the vapour-liquid equilibrium and its related thermodynamic properties. The comparisons with computer simulation results of the Lennard-Jones (LJ) potential suggest the importance of treating the attractive tail of the potential accurately via VSMSA. The estimated reduced critical parameters TC = 1.342, ρC = 0.29 and PC = 0.135 are in good agreement with other theoretical and computer simulation results for the LJ system.",

keywords = "Equation of state of simple liquids, Liquid-vapour coexistence, Properties of double Yukawa potential, Theory of simple liquids",

author = "Khedr, {M. Bahaa} and Osman, {S. M.} and {Al Busaidi}, {M. S.}",

note = "Funding Information: We are grateful to the Sultan Qaboos University for the research project # IG/Sci/Phys/07/04 and its substantial financial support for completing this work.",

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AU - Khedr, M. Bahaa

AU - Osman, S. M.

AU - Al Busaidi, M. S.

N1 - Funding Information: We are grateful to the Sultan Qaboos University for the research project # IG/Sci/Phys/07/04 and its substantial financial support for completing this work.

PY - 2009/6

Y1 - 2009/6

N2 - We present a simple but accurate equation of state for double Yukawa fluids based on the variational series mean spherical approximation (VSMSA). This allows us to investigate the vapour-liquid equilibrium and its related thermodynamic properties. The comparisons with computer simulation results of the Lennard-Jones (LJ) potential suggest the importance of treating the attractive tail of the potential accurately via VSMSA. The estimated reduced critical parameters TC = 1.342, ρC = 0.29 and PC = 0.135 are in good agreement with other theoretical and computer simulation results for the LJ system.

AB - We present a simple but accurate equation of state for double Yukawa fluids based on the variational series mean spherical approximation (VSMSA). This allows us to investigate the vapour-liquid equilibrium and its related thermodynamic properties. The comparisons with computer simulation results of the Lennard-Jones (LJ) potential suggest the importance of treating the attractive tail of the potential accurately via VSMSA. The estimated reduced critical parameters TC = 1.342, ρC = 0.29 and PC = 0.135 are in good agreement with other theoretical and computer simulation results for the LJ system.

KW - Equation of state of simple liquids

KW - Liquid-vapour coexistence

KW - Properties of double Yukawa potential

KW - Theory of simple liquids

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New equation of state for double Yukawa potential with application to Lennard-Jones fluids

Abstract

Keywords

ASJC Scopus subject areas

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