title: On the impossibility of defining adhesive hard spheres as sticky limit of a hard-sphere-Yukawa potential.
abstract: For fluids of molecules with short-ranged hard-sphere-Yukawa (HSY) interactions, it is proven that the Noro-Frenkel "extended law of corresponding states" cannot be applied down to the vanishing attraction range, since the exact HSY second virial coefficient diverges in such a limit. It is also shown that, besides Baxter's original approach, a fully correct alternative definition of "adhesive hard spheres" can be obtained by taking the vanishing-range-limit (sticky limit) not of a Yukawa tail, as is commonly done, but of a slightly different potential with a logarithmic-Yukawa attraction.
authors: Dipartimento di Chimica Fisica, Università di Venezia, S. Marta DD 2137, I-30123 Venezia, Italy. gazzillo@unive.it
authors: Domenico
authors: D
authors: Gazzillo
mesh_terms: D000269:Adhesives / Q000737:chemistry*; D003198:Computer Simulation; D006244:Hardness; D008956:Models, Chemical
chemical_list: D000269:Adhesives