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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: McGraw-Hill Education
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Approximate Vapor–Liquid–Liquid Equilibrium.
A mixture of 1,000 kmol of 75 mol% water and 25 mol% n-octane is cooled under equilibrium conditions at a constant pressure of 133.3 kPa from a temperature of 136oC to a temperature of 25oC.Determine: (a) the initial phase condition, and (b) the temperature, phase amounts, and compositions when each phase change occurs.Assume that water and n-octane are immiscible liquids. The vaporpressure of octane is included in Figure 2.3.

Transcribed Image Text:10,000
6,000
4,000
2,000
1,000
o Critical points
600
400
Carbon dioxide
200
Triple point
100
Ethylene
60
40
Ethane
20
Sulfur dioxide
(Solid CO,)
Water
10
Methanol
Propane
4
Methyl chloride
i-Butane
Ethyl chloride
0.6
0.4
n-Butane
i-Pentane
0.2
n-Heptane
Acetic Acid
Acetone
0.1
-100
n-Pentane
Ethanol
-75
п-Нехапе
Toluene
-Oc tane-
и
n-Propyl benzene
n-De cane
Benzene
-50
-25
o-Xylene-
25
50
75
Temperature, "E
100
150
luulinbinluulwuul
200
250 300 350 400
500 600 700 800
ШAL
Vapor pressure, Ib/sq in.
2.
Nitrobenzene
Dowtherm A
Mercury
ППTTT
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