Abstract:Phase behaviors in fluid state of systems of purely repulsive potentials (PRPs) are investigated with a recently proposed 3rd-order thermodynamic perturbation theory (TPT) (Phys. Rev. E. 2006, 74, 031119). It is found that a usual gas-liquid transition (GLT) always happen to several investigate PRPs, whose perturbation part as a function of particle separation holds a discontinuous point, or an indifferentiable point, or is differentiable, but with an additional length scale besides the hard sphere diameter. O… Show more
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