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Question: In the system A + B, activity coefficients can be expressed by the one-parameter Margules equation with A12 = 0.5. The vapor pressures of A and B at 80oC are PAsat = 900 mmHg, PBsat = 600 mmHg. Is there an azeotrope in this system at 80oC, and if so, what is the azeotrope pressure and composition?

Question: In the system A + B, activity coefficients can be expressed by the one-parameter Margules equation with A12 = 0.5. The vapor pressures of A and B at 80oC are PAsat = 900 mmHg, PBsat = 600 mmHg. Is there an azeotrope in this system at 80oC, and if so, what is the azeotrope pressure and composition?

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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In the system A + B, activity coefficients can be expressed by the one-parameter Margules equation with A12 = 0.5. The vapor pressures of A and B at 80oC are PAsat = 900 mmHg, PBsat = 600 mmHg. Is there an azeotrope in this system at 80oC, and if so, what is the azeotrope pressure and composition?

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