Q2: One kilomol of a mixture of A and B (Z₁=0.5) is passed through a heat exchanger and then flashed to vaporized 30% of the feed .The molar enthalpies of saturated liquid and vapour at 1 atm total pressure (reference temp. = 5°C) may be expressed as: HL 9000 + 1000*(x) kJ/kmol; HV 35000 + 8000*(y) kJ/kmol. The relative volatility is aAB= 1.8. Calculate : a) The concentrations and enthalpies of liquid and vapour products, b) The heat supplied to the feed.

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
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Q2: One kilomol of a mixture of A and B (Z₁=0.5) is passed through a heat exchanger
and then flashed to vaporized 30% of the feed .The molar enthalpies of saturated liquid
5°C) may be expressed as:
and vapour at 1 atm total pressure (reference temp.
HL 9000+ 1000*(x) kJ/kmol; HV 35000 + 8000 (y) kJ/kmol. The relative
volatility is aAB = 1.8. Calculate :
a) The concentrations and enthalpies of liquid and vapour products,
b) The heat supplied to the feed.
=
Transcribed Image Text:Q2: One kilomol of a mixture of A and B (Z₁=0.5) is passed through a heat exchanger and then flashed to vaporized 30% of the feed .The molar enthalpies of saturated liquid 5°C) may be expressed as: and vapour at 1 atm total pressure (reference temp. HL 9000+ 1000*(x) kJ/kmol; HV 35000 + 8000 (y) kJ/kmol. The relative volatility is aAB = 1.8. Calculate : a) The concentrations and enthalpies of liquid and vapour products, b) The heat supplied to the feed. =
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