Thermodynamic properties of He-H2 fluid mixtures over a wide range of temperatures and pressures

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Abstract

The statistical mechanical perturbation theory was used to study the effect of pressure P and temperature T on the properties of mixing of helium-hydrogen fluid mixture. The short range repulsive potential was treated as the unperturbed reference system of the hard sphere mixture. The computed values of pressure agreed well with computer simulation results over an extended region of temperature (50K-4000K) and pressure (0.05 GPa-16 GPa). The results show that segregation, heterocoordination, or both may occur in the He-H2 mixture depending upon its composition, temperature, and pressure.

Original languageEnglish
Article number056104
JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
Volume69
Issue number5 1
Publication statusPublished - May 2004

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Thermodynamic Properties
thermodynamic properties
Fluid
fluids
Range of data
temperature
reference systems
Hard Spheres
Segregation
Perturbation Theory
Hydrogen
Computer Simulation
perturbation theory
computerized simulation
helium
hydrogen

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Condensed Matter Physics
  • Statistical and Nonlinear Physics
  • Mathematical Physics

Cite this

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title = "Thermodynamic properties of He-H2 fluid mixtures over a wide range of temperatures and pressures",
abstract = "The statistical mechanical perturbation theory was used to study the effect of pressure P and temperature T on the properties of mixing of helium-hydrogen fluid mixture. The short range repulsive potential was treated as the unperturbed reference system of the hard sphere mixture. The computed values of pressure agreed well with computer simulation results over an extended region of temperature (50K-4000K) and pressure (0.05 GPa-16 GPa). The results show that segregation, heterocoordination, or both may occur in the He-H2 mixture depending upon its composition, temperature, and pressure.",
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T1 - Thermodynamic properties of He-H2 fluid mixtures over a wide range of temperatures and pressures

AU - Ali, I.

AU - Osman, S. M.

AU - Sulaiman, N.

AU - Singh, R. N.

PY - 2004/5

Y1 - 2004/5

N2 - The statistical mechanical perturbation theory was used to study the effect of pressure P and temperature T on the properties of mixing of helium-hydrogen fluid mixture. The short range repulsive potential was treated as the unperturbed reference system of the hard sphere mixture. The computed values of pressure agreed well with computer simulation results over an extended region of temperature (50K-4000K) and pressure (0.05 GPa-16 GPa). The results show that segregation, heterocoordination, or both may occur in the He-H2 mixture depending upon its composition, temperature, and pressure.

AB - The statistical mechanical perturbation theory was used to study the effect of pressure P and temperature T on the properties of mixing of helium-hydrogen fluid mixture. The short range repulsive potential was treated as the unperturbed reference system of the hard sphere mixture. The computed values of pressure agreed well with computer simulation results over an extended region of temperature (50K-4000K) and pressure (0.05 GPa-16 GPa). The results show that segregation, heterocoordination, or both may occur in the He-H2 mixture depending upon its composition, temperature, and pressure.

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JO - Physical Review E

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