Generalized Van der Waals Equation for Liquid-Vapor Equilibria in a Stationary Gravitational Field

作     者：Makokiyu Godlove Akumbom Georges Collince Fouokeng Martin Tchoffo Lukong Cornelius Fai Makokiyu Godlove Akumbom;Georges Collince Fouokeng;Martin Tchoffo;Lukong Cornelius Fai

作者机构：Unité de Recherche de Matiere Condensée d’Electronique et de Traitement de Signal (URMACETS) Department of Physics Faculty of Science University of Dschang Dschang Cameroon Centre d’Etudes et de Recherche en Agronomie et en Biodiversité Faculté d’Agronomie et des Sciences Agricoles (FASA) Université de Dschang Dschang Cameroon 

出 版 物：《World Journal of Condensed Matter Physics》 (凝固态物理国际期刊（英文）)

年 卷 期：2021年第11卷第1期

页      面：1-11页

学科分类：07[理学] 0701[理学-数学] 070101[理学-基础数学] 

主　　题：Liquid-Vapor Phase Transition Gravitational Field Classical Fluid Concentration Profile 

摘      要：The behavior of liquids undergoing phase transition in the gravitational field is studied by considering the generalized Van der Waals equation. Considering the two simple models for liquid-vapor boundary of a pure classical fluid, the generalized Van der Waals equation shows how the three critical parameters (critical temperature, critical volume and critical pressure), suffice to describe the reduced state parameters (reduced temperature, reduced volume and reduced pressure), the concentration profile and the liquid-vapor boundary position, which can be used to observe transition phenomenon. This model shows how the form of the equation can influence the vertical phase separation induced by the stationary gravitational field, and on the gas condensation effects.