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      https://www.ias.ac.in/article/fulltext/pram/035/06/0533-0555

    • Keywords

       

      Polar hard sphere fluid; dipole moments; quadrupole moments; semiclassial fluid; quantum corrections; free energy; equation of state

    • Abstract

       

      The quantum corrections to the thermodynamic properties of polar hard sphere fluids and fluid mixtures are estimated taking into account the influence of dipole and quadrupole moments. Expressions are given for the second virial coefficient, free energy and pressure and results are given for different values ofμ* andϑ*. The first order quantum correction arises due to the translational contribution only. The quantum effect increases with density,μ* andϑ*. Numerical results are also estimated for binary mixtures of (i) hard spheres and dipole hard spheres and (ii) hard spheres and quadrupole hard spheres. The ‘excess’ free energy for dipole hard sphere binary mixture is also reported. It is found that the ‘excess’ quantum effect depends on the concentration and the particle diameter ratio and increases with increase ofμ* andϑ*.

    • Author Affiliations

       

      Balram Rai1 2 Nagendra Prasad1 Suresh K Sinha1

      1. Department of Physics, L S College, Bihar University, Muzaffarpur - 842 001, India
      2. Department of Physics, M S S G College, (Bihar University), Areraj, East Champaran - 845 411, India
    • Dates

       
  • Pramana – Journal of Physics | News

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