title: Discrete perturbation theory for continuous soft-core potential fluids.
abstract: In this work, we present an equation of state for an interesting soft-core continuous potential [G. Franzese, J. Mol. Liq. 136, 267 (2007)] which has been successfully used to model the behavior of single component fluids that show some water-type anomalies. This equation has been obtained using discrete perturbation theory. It is an analytical expression given in terms of density, temperature, and the set of parameters that characterize the intermolecular interaction. Theoretical results for the vapor-liquid phase diagram and for supercritical pressures are compared with previous and new simulation data and a good agreement is found. This work also clarifies discrepancies between previous Monte Carlo and molecular dynamics simulation results for this potential.
authors: Departamento de Infraestructura, Universidad de Guanajuato, Noria Alta, Guanajuato, CP 36000, México.
authors: L A
authors: LA
authors: Cervantes
authors: División de Ciencias e Ingenierías, Universidad de Guanajuato, Loma del Bosque 103, Colonia Lomas del Campestre, León, Guanajuato, CP 37150, México.
authors: G
authors: G
authors: Jaime-Muñoz
authors: División de Ciencias e Ingenierías, Universidad de Guanajuato, Loma del Bosque 103, Colonia Lomas del Campestre, León, Guanajuato, CP 37150, México.
authors: A L
authors: AL
authors: Benavides
authors: División de Ciencias e Ingenierías, Universidad de Guanajuato, Loma del Bosque 103, Colonia Lomas del Campestre, León, Guanajuato, CP 37150, México.
authors: J
authors: J
authors: Torres-Arenas
authors: División de Ciencias e Ingenierías, Universidad de Guanajuato, Loma del Bosque 103, Colonia Lomas del Campestre, León, Guanajuato, CP 37150, México.
authors: F
authors: F
authors: Sastre