50 kg of a mixture containing 20 wt.% ethanol and the rest water is loaded into a flash drum where it flashes at equilibrium into vapor and liquid. The feed enthalpy is 200 Kcal/kg. The drum pressure is 1 kg/cm2What is the weight fraction of ethanol in the liquid phase?What is the temperature of the vapor in the drum?If the drum is cooled down to bring the mixture above to saturated liquid, what is the latent heat in kcal required to take this mixture from liquid to vapor?Use the data from this diagram to estimate the mean heat capacity of this saturated liquid mixture. (you do not need any other info than what is on the diagram). 600600500Dew-line, Ike/sg. cm500iliory Line for Interpolating Equilibrium Compositions400400300300848320085"86200100Boiling Line IKa/se cm80604020100WoterLiquidFreezing Line20Ice.OC.Solid-1000.20.30.4Concentration of Alcohol, Weight Fraction0.50.60.7-1000.80.9монEntholpy, K col/Kg.985°9589 90805/sothermal tieline 80°C.79.5.62785"2,5922Areotropicuoursoduoo

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Answered: 600 600 500 Dew-line, Ike/sg. cm 500…

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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50 kg of a mixture containing 20 wt.% ethanol and the rest water is loaded into a flash drum where it flashes at equilibrium into vapor and liquid. The feed enthalpy is 200 Kcal/kg. The drum pressure is 1 kg/cm2

What is the weight fraction of ethanol in the liquid phase?
What is the temperature of the vapor in the drum?
If the drum is cooled down to bring the mixture above to saturated liquid, what is the latent heat in kcal required to take this mixture from liquid to vapor?
Use the data from this diagram to estimate the mean heat capacity of this saturated liquid mixture. (you do not need any other info than what is on the diagram).

600
600
500
Dew-line, Ike/sg. cm
500
iliory Line for Interpolating Equilibrium Compositions
400
400
300
300
84
83
200
85"
86
200
100
Boiling Line IKa/se cm
80
60
40
20
100
Woter
Liquid
Freezing Line
20
Ice.
OC.
Solid
-100
0.2
0.3
0.4
Concentration of Alcohol, Weight Fraction
0.5
0.6
0.7
-100
0.8
0.9
мон
Entholpy, K col/Kg.
985°
95
89 90
805
/sothermal tieline 80°C.
79.5
.62
785
"2,5922
Areotropic
uoursoduoo

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