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Chemical Engineering
mentals of Material Balances fowchart shows a distillation column with two feed streams and three The following streams Stream 3 m3(kg A/h) Stream 1 m1(kg/h) 0.03 kg B/kg 0.97 kg C/kg Stream 4 1200 kg/h 0.70 kg A/kg 4B(kg B/kg) xckg C/kg) Stream 2 5300 kg/h 2A(kg A/kg) 2B(kg B/kg) Stream 5 mis(kg/h) 0.60 kg B/kg 0.40 kg C/kg (a) How many independent material balances may be written for this system? (b) How many of the unknown flow rates and/or mole fractions must be specified before the others may be calculated? (See Example 4.3-4. Also, remember what you know about the component mole fractions of a mixture -for example, the relationship between 12A and x2B.) Briefly explain your answer. c) Suppose values are given for imi and t2 Give a series of equations, each involving only a single unknown, for the remaining variables. Circle the variable for which you would solve. (Once a e has been calculated in one of these equations, it may appear in subsequent equations without being counted as an unknown.)

mentals of Material Balances fowchart shows a distillation column with two feed streams and three The following streams Stream 3 m3(kg A/h) Stream 1 m1(kg/h) 0.03 kg B/kg 0.97 kg C/kg Stream 4 1200 kg/h 0.70 kg A/kg 4B(kg B/kg) xckg C/kg) Stream 2 5300 kg/h 2A(kg A/kg) 2B(kg B/kg) Stream 5 mis(kg/h) 0.60 kg B/kg 0.40 kg C/kg (a) How many independent material balances may be written for this system? (b) How many of the unknown flow rates and/or mole fractions must be specified before the others may be calculated? (See Example 4.3-4. Also, remember what you know about the component mole fractions of a mixture -for example, the relationship between 12A and x2B.) Briefly explain your answer. c) Suppose values are given for imi and t2 Give a series of equations, each involving only a single unknown, for the remaining variables. Circle the variable for which you would solve. (Once a e has been calculated in one of these equations, it may appear in subsequent equations without being counted as an unknown.)

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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mentals of Material Balances fowchart shows a distillation column with two feed streams and three The following streams Stream 3 m3(kg A/h) Stream 1 m1(kg/h) 0.03 kg B/kg 0.97 kg C/kg Stream 4 1200 kg/h 0.70 kg A/kg 4B(kg B/kg) xckg C/kg) Stream 2 5300 kg/h 2A(kg A/kg) 2B(kg B/kg) Stream 5 mis(kg/h) 0.60 kg B/kg 0.40 kg C/kg (a) How many independent material balances may be written for this system? (b) How many of the unknown flow rates and/or mole fractions must be specified before the others may be calculated? (See Example 4.3-4. Also, remember what you know about the component mole fractions of a mixture -for example, the relationship between 12A and x2B.) Briefly explain your answer. c) Suppose values are given for imi and t2 Give a series of equations, each involving only a single unknown, for the remaining variables. Circle the variable for which you would solve. (Once a e has been calculated in one of these equations, it may appear in subsequent equations without being counted as an unknown.)
Transcribed Image Text:mentals of Material Balances fowchart shows a distillation column with two feed streams and three The following streams Stream 3 m3(kg A/h) Stream 1 m1(kg/h) 0.03 kg B/kg 0.97 kg C/kg Stream 4 1200 kg/h 0.70 kg A/kg 4B(kg B/kg) xckg C/kg) Stream 2 5300 kg/h 2A(kg A/kg) 2B(kg B/kg) Stream 5 mis(kg/h) 0.60 kg B/kg 0.40 kg C/kg (a) How many independent material balances may be written for this system? (b) How many of the unknown flow rates and/or mole fractions must be specified before the others may be calculated? (See Example 4.3-4. Also, remember what you know about the component mole fractions of a mixture -for example, the relationship between 12A and x2B.) Briefly explain your answer. c) Suppose values are given for imi and t2 Give a series of equations, each involving only a single unknown, for the remaining variables. Circle the variable for which you would solve. (Once a e has been calculated in one of these equations, it may appear in subsequent equations without being counted as an unknown.)
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