On the role of the reference system in perturbation theory: An augmented van der Waals theory of simple fluids

被引：27

作者：

Melnyk, Roman ^{[1
]}

Nezbeda, Ivo ^{[2
,3
]}

Henderson, Douglas ^{[4
]}

Trokhymchuk, Andrij ^{[1
,4
]}

机构：

[1] Natl Acad Sci Ukraine, Inst Condensed Matter Phys, UA-79011 Lvov, Ukraine

[2] Acad Sci Czech Republ, E Hala Lab Thermodynam, Inst Chem Proc Fundamentals, CR-16502 Prague 6, Czech Republic

[3] JE Purkinje, Fac Sci, Usti Nad Labem 40096, Czech Republic

[4] Brigham Young Univ, Dept Chem & Biochem, Provo, UT 84602 USA

来源：

FLUID PHASE EQUILIBRIA | 2009年 / 279卷 / 01期

关键词：

Perturbation theory; Reference system; Simple fluids; Thermodynamics; Liquid-vapor coexistence; EQUATION-OF-STATE; INTEGRAL-EQUATION; CRITICAL-BEHAVIOR; PHASE-DIAGRAMS; YUKAWA FLUID; LIQUID; RANGE; EQUILIBRIA;

D O I：

10.1016/j.fluid.2008.12.004

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this Study, we show that the inclusion Of a short-range part of the total attractive interaction into a reference system allows a natural extension of the traditional first-order perturbation theory of simple fluids to practically all thermodynamic states. This theory is applied to the thermodynamic functions and the liquid-vapor coexistence curve of the Lennard-Jones-like medium range Yukawa fluid and to the Sutherland fluid. Comparison with computer Simulation data and the second-order Barker-Henderson perturbation theory is discussed. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：1 / 10

页数：10

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