Three-phase fractionation of polydisperse fluids
نویسندگان
چکیده
It is shown that the van der Waals free-energy of polydisperse fluids, as introduced previously ( L. Bellier-Castella, H. Xu and M. Baus, J. Chem. Phys. 113, 8337 (2000) ), predicts that for certain thermodynamic states (e.g. low temperatures and large polydispersities) the ordinary two-phase coexistences become metastable relative to a fractionation of the system into three phases, reducing thereby the polydispersity of each of the coexisting phases.
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