At time t = 0 a large tank contains Qo solution containing 2 pounds of sugar pe per hour. The mixture is thoroughly stirr drained at the rate of 20 gallons per hou at time t. Find a differential equation tha Hint: note that the total volume of soluti gallons goes into the tank but 20 gallons

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
icon
Related questions
Question
10 pts
At time t = 0 a large tank contains Qo pounds of sugar dissolved in 500 gallons of water. A water
solution containing 2 pounds of sugar per gallon is flowing into the tank at the rate of 15 gallons
per hour. The mixture is thoroughly stirred at all times. Also, the mixture in the tank is being
drained at the rate of 20 gallons per hour. Let Q(t) be the number of pounds of sugar in the tank
at time t. Find a differential equation that models Q(t). (Do not solve this equation.)
Hint: note that the total volume of solution in the tank is not a constant 500 gallons, since 15
gallons goes into the tank but 20 gallons leaves the tank each hour.
Transcribed Image Text:10 pts At time t = 0 a large tank contains Qo pounds of sugar dissolved in 500 gallons of water. A water solution containing 2 pounds of sugar per gallon is flowing into the tank at the rate of 15 gallons per hour. The mixture is thoroughly stirred at all times. Also, the mixture in the tank is being drained at the rate of 20 gallons per hour. Let Q(t) be the number of pounds of sugar in the tank at time t. Find a differential equation that models Q(t). (Do not solve this equation.) Hint: note that the total volume of solution in the tank is not a constant 500 gallons, since 15 gallons goes into the tank but 20 gallons leaves the tank each hour.
Expert Solution
Step 1

The amount of sugar dissolved in the tank initially=Qo pounds

Volume of water in the tank=500 gallons

The rate of inflow of sugar=2 pounds/gallon

The rate of inflow of solution=15 gallons/hour

Therefore, the inflow of sugar=2×15=30 pounds/hour

The rate of outflow of mixture=20 gallons/hour

At any time , (t)the amount of sugar in the tank =Q(t)

steps

Step by step

Solved in 2 steps

Blurred answer
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Advanced Engineering Mathematics
Advanced Engineering Mathematics
Advanced Math
ISBN:
9780470458365
Author:
Erwin Kreyszig
Publisher:
Wiley, John & Sons, Incorporated
Numerical Methods for Engineers
Numerical Methods for Engineers
Advanced Math
ISBN:
9780073397924
Author:
Steven C. Chapra Dr., Raymond P. Canale
Publisher:
McGraw-Hill Education
Introductory Mathematics for Engineering Applicat…
Introductory Mathematics for Engineering Applicat…
Advanced Math
ISBN:
9781118141809
Author:
Nathan Klingbeil
Publisher:
WILEY
Mathematics For Machine Technology
Mathematics For Machine Technology
Advanced Math
ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,
Basic Technical Mathematics
Basic Technical Mathematics
Advanced Math
ISBN:
9780134437705
Author:
Washington
Publisher:
PEARSON
Topology
Topology
Advanced Math
ISBN:
9780134689517
Author:
Munkres, James R.
Publisher:
Pearson,