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Benzene can break the ethanol/water azeotrope to produce nearly pure ethanol. Wilson constants for the ethanol (1)/benzene (2) system at 45°C are A12 = 0.124 and A2 = 0.523. Use these with the Wilson equation to predict liquid-phase activity coefficients over the composition range and compare them, in a plot like Figure 2.12, with the experimental results [Austral. J. Chem., 7, 264 (1954)]: In yi In y2 0.0374 2.0937 0.0220 0.0972 1.6153 0.0519 0.3141 0.7090 0.2599 0.5199 0.3136 0.5392 0.7087 0.1079 0.8645 0.9193 0.0002 1.3177 0.9591 -0.0077 1.3999

Benzene can break the ethanol/water azeotrope to produce nearly pure ethanol. Wilson constants for the ethanol (1)/benzene (2) system at 45°C are A12 = 0.124 and A2 = 0.523. Use these with the Wilson equation to predict liquid-phase activity coefficients over the composition range and compare them, in a plot like Figure 2.12, with the experimental results [Austral. J. Chem., 7, 264 (1954)]: In yi In y2 0.0374 2.0937 0.0220 0.0972 1.6153 0.0519 0.3141 0.7090 0.2599 0.5199 0.3136 0.5392 0.7087 0.1079 0.8645 0.9193 0.0002 1.3177 0.9591 -0.0077 1.3999

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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Benzene can break the ethanol/water azeotrope to produce nearly pure ethanol. Wilson constants for the ethanol (1)/benzene (2) system at 45°C are A12 = 0.124 and A21 = 0.523. Use these with the Wilson equation to predict liquid-phase activity coefficients over the composition range and compare them, in a plot like Figure 2.12, with the experimental results [Austral. J. Chem., 7, 264 (1954)]: In yi In y2 0.0374 2.0937 0.0220 0.0972 1.6153 0.0519 0.3141 0.7090 0.2599 0.5199 0.3136 0.5392 0.7087 0.1079 0.8645 0.9193 0.0002 1.3177 0.9591 -0.0077 1.3999
Transcribed Image Text:Benzene can break the ethanol/water azeotrope to produce nearly pure ethanol. Wilson constants for the ethanol (1)/benzene (2) system at 45°C are A12 = 0.124 and A21 = 0.523. Use these with the Wilson equation to predict liquid-phase activity coefficients over the composition range and compare them, in a plot like Figure 2.12, with the experimental results [Austral. J. Chem., 7, 264 (1954)]: In yi In y2 0.0374 2.0937 0.0220 0.0972 1.6153 0.0519 0.3141 0.7090 0.2599 0.5199 0.3136 0.5392 0.7087 0.1079 0.8645 0.9193 0.0002 1.3177 0.9591 -0.0077 1.3999
30 1 atm 20 O A Experimental data van Laar equation --- Wilson equation 10 9 8 Yethanal Yn-hexane 3 2 1.0 2.0 4.0 6.0 8.0 1.0 Xethanol Figure 2.12 Activity coefficients for ethanol/n-hexane. [Data from J.E. Sinor and J.H. Weber, J. Chem. Eng. Data, 5, 243-247 (1960).)
Transcribed Image Text:30 1 atm 20 O A Experimental data van Laar equation --- Wilson equation 10 9 8 Yethanal Yn-hexane 3 2 1.0 2.0 4.0 6.0 8.0 1.0 Xethanol Figure 2.12 Activity coefficients for ethanol/n-hexane. [Data from J.E. Sinor and J.H. Weber, J. Chem. Eng. Data, 5, 243-247 (1960).)
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