• Effective potential for water vapour

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    • Keywords


      Lennard-Jones potential; effective potential; second virial coefficient; water vapour

    • Abstract


      A suitable temperature dependence is introduced into the force parameters of the Lennard-Jones potential by taking the free-energy average of the Rowlinson potential. The resulting temperature-dependent parameters are used to calculate the effective potential, which is plotted for water vapour at a few different temperatures. The temperature-dependence of the second virial coefficient is shown for the cases of temperature-independent and temperature-dependent parameters of which the latter agrees very well with experimental results.

    • Author Affiliations


      O M Singh1 A W Joshi1

      1. Department of Physics, Institute of Advanced Studies, Meerut University, Meerut - 250 001, India
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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