Title: Relationship between thermodynamic perturbation and scaled particle theories for fused dimers fluids
Author(s):

O. Bernard (Laboratoire PHENIX, CNRS, Sorbonne Université (Campus P.M. Curie), 4 Place Jussieu, Case 51, F-75005 Paris, France)

Various approaches are reviewed that use scaled particle theories to describe dumbbell fluids made of tangent or overlapped hard spheres. Expressions encountered in the literature are written in a form similar to that presented in the thermodynamic perturbation theory introduced by Wertheim for chains and developed in statistical associating fluid theory (SAFT). Analogies and differences observed in these two types of theoretical descriptions allow one to propose alternative theoretical expressions to describe dumbbell fluids with overlapping spheres.

Key words: hard dumbbells fluid, scaled particle theory, thermodynamic perturbation theory

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