Differentiate between an ideal and a regular solution consisting of a mixture of A andB atoms. Which of these solutions, is likely to contain a random mixture of atomsat all temperatures? For the binary A-B ideal-solution, differentiate the equationfor the configurational entropy of mixing with respect to concentration. Hence showthat the slope of the free energy of mixing versus concentration curve is towards±infinity when the mole fraction is 0 or 1. Does this make it easy or hard to purifymaterials?

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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Differentiate between an ideal and a regular solution consisting of a mixture of A and
B atoms. Which of these solutions, is likely to contain a random mixture of atoms
at all temperatures? For the binary A-B ideal-solution, differentiate the equation
for the configurational entropy of mixing with respect to concentration. Hence show
that the slope of the free energy of mixing versus concentration curve is towards
±infinity when the mole fraction is 0 or 1. Does this make it easy or hard to purify
materials?

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