a) Calculate the parameter A. b) The pressure above a mixture of ethanol and ethyl acetate at 70°C is measured to be 86 kPa. What are the possible compositions of the liquid and vapor phases? c) For a mixture in equilibrium containing 20 mol% of ethyl acetate at 70°C and 84 kPa, what are the compositions of ethanol in the vapor and liquid phases respectively?
a) Calculate the parameter A. b) The pressure above a mixture of ethanol and ethyl acetate at 70°C is measured to be 86 kPa. What are the possible compositions of the liquid and vapor phases? c) For a mixture in equilibrium containing 20 mol% of ethyl acetate at 70°C and 84 kPa, what are the compositions of ethanol in the vapor and liquid phases respectively?
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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Transcribed Image Text:The system ethanol (1)/ ethyl acetate (2) is a non-ideal mixture which obeys to the modified Raoult's law with the
following expressions of the activity coefficients:
In (n)-Ax
Based on the vapor/liquid equilibrium Pxy diagram at 70°C:
%3D
In (y)-Ax
a) Calculate the parameter A.
b) The pressure above a mixture of ethanol and ethyl acetate at 70°C is measured to be 86 kPa. What are the
possible compositions of the liquid and vapor phases?
c) For a mixture in equilibrium containing 20 mol% of ethyl acetate at 70°C and 84 kPa, what are the
compositions of ethanol in the vapor and liquid phases respectively?
94
92
90
88
86
84
82
80
78
76
74
72
70
0.8 09
0,1 0,2 03
04 05 06 07
Figure 1: Pxy diagram for vapor/liquid equilibrium of
N lathvl acetate (2) at 70°C.
P(APa)
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