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The system acetonitrile (1)-water (2) forms an azeotrope at 1 atm pressure* at x T = 76.5°C. a. From the azeotropic point, calculate the van Laar parameters. == 0.695,

The system acetonitrile (1)-water (2) forms an azeotrope at 1 atm pressure* at x T = 76.5°C. a. From the azeotropic point, calculate the van Laar parameters. == 0.695,

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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The system acetonitrile (1)–water (2) forms an azeotrope at 1 atm pressure' at x, 76.5°C. 0.695, T = a. From the azeotropic point, calculate the van Laar parameters. b. Fit the data below to the van Laar equation for the best parameter set. c. Fit the data for the best three-suffix Margules parameters. d. Compare the predictions for y, and y, from the three sets of parameters to the actual data point at x, = 0.1050, 80.7°C. VLE for acetonitrile (1)-water (2) at 760 mmHg (1 atm): T, °C 84.2 0.0540 0.4580 0.1050 0.6330 80.7 0.5540 0.6840 0.6970 77.2 76.8 0.7250 78.1 0.9030 0.8250 79.4 0.9640 0.9030 The Antoine constants for acetonitrile are: A = 7.33986 B = 1482.290 C = 250.523 Assume an ideal vapor phase. Note: The model predictions (in b and c, above) may not cover the whole date range. Use your judgement.
Transcribed Image Text:The system acetonitrile (1)–water (2) forms an azeotrope at 1 atm pressure' at x, 76.5°C. 0.695, T = a. From the azeotropic point, calculate the van Laar parameters. b. Fit the data below to the van Laar equation for the best parameter set. c. Fit the data for the best three-suffix Margules parameters. d. Compare the predictions for y, and y, from the three sets of parameters to the actual data point at x, = 0.1050, 80.7°C. VLE for acetonitrile (1)-water (2) at 760 mmHg (1 atm): T, °C 84.2 0.0540 0.4580 0.1050 0.6330 80.7 0.5540 0.6840 0.6970 77.2 76.8 0.7250 78.1 0.9030 0.8250 79.4 0.9640 0.9030 The Antoine constants for acetonitrile are: A = 7.33986 B = 1482.290 C = 250.523 Assume an ideal vapor phase. Note: The model predictions (in b and c, above) may not cover the whole date range. Use your judgement.
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