Abstract
To study the effect of the shape of molecules on properties of polar fluids, the second pressure virial coefficient,B(T), of quadrupolar hard homonuclear dumbells is investigated both numerically and analytically. Convergence of the expansion ofB(T) about the hard dumbell reference is examined and a simple approximate analytic formula is derived which provides a good estimate ofB(T) for temperatures higher than the Boyle temperature,T B. BelowT B the examined expansion methods break down. Independently of the calculations ofB(T), an approximate analytic expression of the average Boltzmann factor of the model considered has been also derived.
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Strnad, M., Nezbeda, I. The second virial coefficient of quadrupolar dumbells. Czech J Phys 37, 1261–1276 (1987). https://doi.org/10.1007/BF01599676
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DOI: https://doi.org/10.1007/BF01599676