Abstract
Two approximations, the single super chainf-expansion (sscf), and Percus-Yevick (py) approximation, are evaluated for a molecular fluid in which the molecules interact with a pair potential, that is the sum of Lennard-Jones and quadrupole-quadrupole parts at two values of reduced quadrupole moment. These results are compared with Monte-Carlo results. Except for the harmonic coefficienth (222;r), thesscf approximation seems to be quite accurate for the lower value of quadrupole moment but at higher valuespy approximation produces much better results except forh(220;r).
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Ram, J. Evaluation of thesscf andpy approximations for quadrupolar fluids. Pramana - J Phys 23, 519–528 (1984). https://doi.org/10.1007/BF02846628
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DOI: https://doi.org/10.1007/BF02846628