What are the independent equations used and the volume of the second
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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What are the independent equations used and the volume of the second
Transcribed Image Text:<
Question 3 of 6
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number of unknowns: 5
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Which independent equations can be written to solve for the volume of the second feed solution?
mass balance on NaCl
The density of the 26 wt% NaCl solution relates the solution mass to volume.
The sum of the weight fractions of the 26 wt% NaCl solution is equal to 1.
The density of the 12 wt% NaCl solution relates the solution mass to volume.
volume balance on NaCl
The sum of the weight fractions of the product solution is equal to 1.
volume balance on the total amount of fluid
mass balance on water
volume balance on water
The sum of the weight fractions of the 12 wt% NaCl solution is equal to 1.
What is the volume of the second feed solution?
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Attempt 12 -
Transcribed Image Text:3 of 6
© Macmillan Learning
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Suppose 305 gallons of a mixture containing 12 wt% NaCl (sodium chloride) and 88 wt% water
(solution density = 1.0837 g/cm³) is mixed with an unknown volume of solution that is 26 wt% NaCl and 74 wt% water
(solution density = 1.1944 g/cm³). Complete the questions to determine the volume of the second feed solution required to
produce a mixture containing 13 wt% NaCl.
Label the flow chart of the mixing process. Do not leave any spaces empty.
305
unknown
12
88
unknown
unknown
26
74
gallons
grams mixture
wt% NaCl
wt% water
gallons
grams mixture
wt% NaCl
wt% water
Mixer
Answer Bank
unknown
13
unknown
grams mixture
wt% NaCl
Attempt 12
wt water
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