Margules parameters:Methanol-Water: Awm = 0.6174, Amw = 0.7279Ethanol-Water: Awe = 0.7917, Aew = 1.6366 feed back to help with quesAn iterative approach was required and it was vital to consider non-ideal solution behaviour by using Margules coefficients. Most of you seemed to be taking the right approach to this. I suggested that you could stop iterating if your sum of mole fractions was between 0.99 and 1.01. We found that the composition of the vapour was very similar to the composition of the liquid, i.e. we are near the azeotropic composition. vapour)Ym (molefraction of methanol i0.80.60.40.20x-y diagram for methanol/water at 1 atm0.20.60.4Xm (molefraction of methanol in liquid)0.82) A binary solution of ethanol and water is in equilibrium with its vapour in a process vessel at apressure of 1 atm. The liquid-phase mole fraction of ethanol is 0.89. Calculate the temperature ofthe system and the composition of the vapour. You should use the Margules coefficients providedabove to account for the non-ideality of the solution.Comment on your answer.

The bubble temperature and resulting vapor composition is to be calculated.

Answered: 2) A binary solution of ethanol and…

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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Margules parameters:

Methanol-Water: Awm = 0.6174, Amw = 0.7279

Ethanol-Water: Awe = 0.7917, Aew = 1.6366

feed back to help with ques

An iterative approach was required and it was vital to consider non-ideal solution behaviour by using Margules coefficients. Most of you seemed to be taking the right approach to this. I suggested that you could stop iterating if your sum of mole fractions was between 0.99 and 1.01. We found that the composition of the vapour was very similar to the composition of the liquid, i.e. we are near the azeotropic composition.