A closed fixed-volume vessel contains a mixture of benzene and toluene in vapor-liquid equilibrium at 1.5 bar. The vapor phase, which also contains 50 mol% air, occupies 90% of the total volume of the container. A special valve is suddenly opened to remove all the molecules initially present in the vapor phase (i.e., they are sucked out of the container). After the valve is closed and the system returns to equilibrium at the same temperature, what is the final pressure of the system? a. none of the choices d. 0.75 bar b. 1.5 bar e. 0.75 bar < P < 1.5 bar
A closed fixed-volume vessel contains a mixture of benzene and toluene in vapor-liquid equilibrium at 1.5 bar. The vapor phase, which also contains 50 mol% air, occupies 90% of the total volume of the container. A special valve is suddenly opened to remove all the molecules initially present in the vapor phase (i.e., they are sucked out of the container). After the valve is closed and the system returns to equilibrium at the same temperature, what is the final pressure of the system? a. none of the choices d. 0.75 bar b. 1.5 bar e. 0.75 bar < P < 1.5 bar
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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A closed fixed-volume vessel contains a mixture of benzene and toluene in vapor-liquid equilibrium at 1.5 bar. The vapor phase, which also contains 50 mol% air, occupies 90% of the total volume of the container. A special valve is suddenly opened to remove all the molecules initially present in the vapor phase (i.e., they are sucked out of the container). After the valve is closed and the system returns to equilibrium at the same temperature, what is the final pressure of the system?
|
a.
|
none of the choices |
d.
|
0.75 bar |
|
b.
|
1.5 bar |
e.
|
0.75 bar < P < 1.5 bar |
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