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A liquid mixture contains 60.0% by weight of ethanol (E), 5.0% by weight of a solute dissolved (S) and the rest is water (W). A stream of this liquid mixture is fed to a continuous distillation column operating at steady state. From it come out distillate streams (above) and bottoms (below). It is known that the flow of the seed of the distillate streams and bottoms are equal and that the distillate stream contains 90.0% w/w ethanol (E) and no dissolved solute (S). a. Calculate the mass fraction of dissolved solute (S) in the fund stream. b. Calculate the ratio of kg of ethanol (E) in the stream of funds to kg of ethanol (E) in the liquid feed mixture).

A liquid mixture contains 60.0% by weight of ethanol (E), 5.0% by weight of a solute dissolved (S) and the rest is water (W). A stream of this liquid mixture is fed to a continuous distillation column operating at steady state. From it come out distillate streams (above) and bottoms (below). It is known that the flow of the seed of the distillate streams and bottoms are equal and that the distillate stream contains 90.0% w/w ethanol (E) and no dissolved solute (S). a. Calculate the mass fraction of dissolved solute (S) in the fund stream. b. Calculate the ratio of kg of ethanol (E) in the stream of funds to kg of ethanol (E) in the liquid feed mixture).

Introduction to Chemical Engineering Thermodynamics
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 liquid mixture contains 60.0% by weight of ethanol (E), 5.0% by weight of a solute dissolved (S) and the rest is water (W). A stream of this liquid mixture is fed to a continuous distillation column operating at steady state. From it come out distillate streams (above) and bottoms (below). It is known that the flow of the seed of the distillate streams and bottoms are equal and that the distillate stream contains 90.0% w/w ethanol (E) and no dissolved solute (S).

a. Calculate the mass fraction of dissolved solute (S) in the fund stream.
b. Calculate the ratio of kg of ethanol (E) in the stream of funds to kg of ethanol (E) in the liquid feed mixture). 

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