5 Calculate the bubble point temperature and the equilibrium vapour composition for a liquid containing ethanol, water and methanol with the mole fractions 0.15, 0.82 and 0.03, respectively. Perform your calculation for a saturation pressure of 100 kPa. You may calculate partial pressures using the Antoine equation: InP= A - ethanol water methanol B T+C with the constants A, B and C giving P in kPa. A B 16.8958 3795.17 16.3872 3885.70 16.5785 3638.27 C 230.918 230.170 239.500 at T = 100°C, so the
5 Calculate the bubble point temperature and the equilibrium vapour composition for a liquid containing ethanol, water and methanol with the mole fractions 0.15, 0.82 and 0.03, respectively. Perform your calculation for a saturation pressure of 100 kPa. You may calculate partial pressures using the Antoine equation: InP= A - ethanol water methanol B T+C with the constants A, B and C giving P in kPa. A B 16.8958 3795.17 16.3872 3885.70 16.5785 3638.27 C 230.918 230.170 239.500 at T = 100°C, so the
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:5
handl
Calculate the bubble point temperature and the equilibrium vapour composition for a
liquid containing ethanol, water and methanol with the mole fractions 0.15, 0.82 and
0.03, respectively. Perform your calculation for a saturation pressure of 100 kPa. You
may calculate partial pressures using the Antoine equation:
xe: 015
B
T+C
with the constants A, B and C giving P in kPa.
A
B
16.8958-
3795.17
16.3872
3885.70
16.5785
3638.27
ethanol
water
methanol
InP= A -;
C
230.918
230.170
239.500
Hint: at 100 kPa, highest-boiling component, water, evaporates at T = 100°C, so the
bubble point must be at a lower temperature. Start your estimation with the boiling point
of ethanol, 78°C.
Xw = 0.82,
Xm=
0.03
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