![]() ![]() As pressure reduces, more & more L vaporizes until completed at W point where last drop of L (dew) disappear – dew point: a point when a vapor forms the first droplet of liquid and begins to condense Fig.Liquid at F, reduces pressure at constant T & composition along FG, the first bubble appear at L – bubble point: a point when a liquid forms the first bubble of vapor and begins to evaporate.contact to each other in a closed location.takes place when liquid and vapor are allowed to.e.g: mixture of liquid and vapor at an equilibrium.Binary mixture: Mixture that contains two constituents.rate of evaporation (liquid → vapor) =.A condition where a liquid phase and vapor phase.VLE: State of coexistence of L & V phases.The T, P, composition reaches final value which will remain fixed: equilibrium THE NATURE OF EQUILIBRIUM Equilibrium : A static condition in which no changes occur in the macroscopic properties of a system with time. Measures of composition VLE : Qualitative behavior Simple Models for VLE - Raoult’s Law - Dewpoint& Bubblepoint Calculations with Raoult’s Law - Henry’s Law VLE by modified Raoult’s law VLE from K-value correlations.PTT 201/4THERMODYNAMICS SEM 1 (2013/2014) Vapor/Liquid Equilibrium (VLE) Solution Thermodynamic:Ĭhapter Outline (Smith) Nature of Equilibrium ![]()
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