tanks in series

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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1. Three tanks in series containing 10, 20 and 30 gallons of liquids are continuously stirred. 1
gal/min of fluid enters at the 1st tank (w/ 10 gal of liquids). 2 gal/min of fluid from the 1st tank
leaves and enters the 2nd tank (w/ 20 gal of liquids). 3 gal/min of fluid from the 2nd tank leaves
and enters the 3rd tank (w/ 30 gal of liquids). 2 gal/min of fluid finally leaves the 3rd tank. Only
the 3rd tank has salt, which is 3 lbs initially. Assuming that the fluids flowing and that of the
contents 2 other tanks are water, determine the time required in minutes for the salt content in
tank 3 to be 2.75 lbs. (
Transcribed Image Text:1. Three tanks in series containing 10, 20 and 30 gallons of liquids are continuously stirred. 1 gal/min of fluid enters at the 1st tank (w/ 10 gal of liquids). 2 gal/min of fluid from the 1st tank leaves and enters the 2nd tank (w/ 20 gal of liquids). 3 gal/min of fluid from the 2nd tank leaves and enters the 3rd tank (w/ 30 gal of liquids). 2 gal/min of fluid finally leaves the 3rd tank. Only the 3rd tank has salt, which is 3 lbs initially. Assuming that the fluids flowing and that of the contents 2 other tanks are water, determine the time required in minutes for the salt content in tank 3 to be 2.75 lbs. (
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