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    • Effective potential for water vapour

      O M Singh A W Joshi

      Molecular Physics Volume 15 Issue 5 November 1980 pp 407-412

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/015/05/0407-0412

    • 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

       
      Published
      November 1980
      Manuscript received
      10 April 1980
      Manuscript revised
      9 October 1980

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