In a specialty gas manufacturing process, custom mixtures of nitrogen and oxygen are produced by mixing stock gases. We are trying to produce 50.0 kg of 65.0 mass % nitrogen gas, which will be stored in Tank 3. TankI and Tank 2 are mixed together to get 1Tank 3. Tank l contains 90.0 mass % nitrogen. Tank 2 contains 30.0 mass % nitrogen. Determine the amount of gas from tank 1, m1 in kg, and the amount of gas from tank 2, m2 in kg, that must be blended into tank 3 to get the desired mixture.  a.) Do you need to choose a basis to solve this problem? Briefly and concisely, explain.  b.) Draw a flowchart for this process.  c.) Carry out a Degrees of Freedom analysis based on your flowchartfrom part 2. Do you have enough information to solve?  d.)Solve for the unknows m1 in kg and m2 in kg

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
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In a specialty gas manufacturing process, custom mixtures of nitrogen and oxygen are produced by mixing stock gases. We are trying to produce 50.0 kg of 65.0 mass % nitrogen gas, which will be stored in Tank 3. TankI and Tank 2 are mixed together to get 1Tank 3. Tank l contains 90.0 mass % nitrogen. Tank 2 contains 30.0 mass % nitrogen. Determine the amount of gas from tank 1, m1 in kg, and the amount of gas from tank 2, m2 in kg, that must be blended into tank 3 to get the desired mixture. 

a.) Do you need to choose a basis to solve this problem? Briefly and concisely, explain. 

b.) Draw a flowchart for this process. 

c.) Carry out a Degrees of Freedom analysis based on your flowchartfrom part 2. Do you have enough information to solve? 

d.)Solve for the unknows m1 in kg and m2 in kg. 

Expert Solution
Step 1

Given data:

Composition of nitrogen in tank 1 = 90% by mass.

Composition of nitrogen in tank 2 = 30 % by mass

Desired composition of nitrogen = 65 % by mass

Amount of nitrogen = 50 kg

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