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Vapor-liquid equilibrium is reported for a certain mixture at 30°C in the following form for the activity coefficients: In y, = 0.56x + 1.4x,x In y = 1.26x - 1.4xx2 %3D %3!

Vapor-liquid equilibrium is reported for a certain mixture at 30°C in the following form for the activity coefficients: In y, = 0.56x + 1.4x,x In y = 1.26x - 1.4xx2 %3D %3!

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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Vapor-liquid equilibrium is reported for a certain mixture at 30°C in the following form for the activity coefficients: In y, = 0.56x? + 1.4x,x} In y = 1.26x} - 1.4x}x, The pure-component vapor pressures are 0.167 × 10° Pa and 0.190 × 10 Pa, respectively. a. Neglecting vapor-phase nonideality, and assuming pure-component fugacity coefficients to be unity, calculate and plot the x-y-P diagram. b. Is there an azeotrope? If so, at what mole fraction does it occur (+ 0.02)?
Transcribed Image Text:Vapor-liquid equilibrium is reported for a certain mixture at 30°C in the following form for the activity coefficients: In y, = 0.56x? + 1.4x,x} In y = 1.26x} - 1.4x}x, The pure-component vapor pressures are 0.167 × 10° Pa and 0.190 × 10 Pa, respectively. a. Neglecting vapor-phase nonideality, and assuming pure-component fugacity coefficients to be unity, calculate and plot the x-y-P diagram. b. Is there an azeotrope? If so, at what mole fraction does it occur (+ 0.02)?
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