Liquid-vapour coexistence and correlations in the interface
- 20 April 1980
- journal article
- research article
- Published by Taylor & Francis in Molecular Physics
- Vol. 39 (6) , 1437-1443
- https://doi.org/10.1080/00268978000101171
Abstract
From the derivative of the statistical mechanical definition of the number density (the first Yvon equation), we derive an infinite set of sum rules that must be satisfied by the density profile and the pair correlation function of a liquid-vapour system with pairwise central interactions. For a particular class of approximate pair correlation functions, the sum rules reduce to equations linking the pressure and temperature with the densities of the two bulk phases. Good agreement with experimental data is obtained.Keywords
This publication has 10 references indexed in Scilit:
- On gradient theories of fluid interfacial stress and structureThe Journal of Chemical Physics, 1978
- Structure of a liquid-vapor interfaceJournal of Statistical Physics, 1977
- Surface tension and energy of a classical liquid-vapour interfaceMolecular Physics, 1977
- Computer simulation of a gas–liquid surface. Part 1Journal of the Chemical Society, Faraday Transactions 2: Molecular and Chemical Physics, 1977
- Scaled equation of state parameters for gases in the critical regionJournal of Physical and Chemical Reference Data, 1976
- On the structure of a free surface of a Lennard-Jones liquid: A Monte Carlo calculationThe Journal of Chemical Physics, 1975
- An experimental study of the equation of state of liquid xenonThe Journal of Chemical Thermodynamics, 1973
- Statistical mechanical and quasithermodynamic calculations of surface densities and surface tensionMolecular Physics, 1973
- Experimental Evidence Concerning the Law of Rectilinear DiameterPhysical Review Letters, 1972
- A simple theory for the densities of coexistent liquid and vapour through the transition regionJournal of Physics A: General Physics, 1971