DO NOT solve the problem.

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
Publisher:William Moebs, Samuel J. Ling, Jeff Sanny
Chapter15: Oscillations
Section: Chapter Questions
Problem 71CP: Consider the van der Waals potential U(r)=U0[( R 0 r)122( R 0 r)6] , used to model the potential...
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For the problem described below, please fully sketch the scenario described in
the problem statement, characterize the mass balance (conservative vs non-
conservative and steady-state vs not at steady-state) giving reasons for your
characterization of the system, and locate the mass balance in both space and
time. Please DO NOT solve the problem.
Coming home after the end of the winter semester, you find that your family's
swimming pool has not be maintained well. In particular, it has no chlorine
residual at all, and it is full of tree leaves. You buy a concentrated chlorine
solution (1% as Cl₂) and begin to meter it into the pool at a rate of 100 mL/hour.
The pool has a volume of 200 m³. You also add new water, and remove in-pool
water, at a rate of 3.785 L/minute. The chlorine reacts with the organic matter in
the with a rate of 0.5/hour. How long will it take to get the Cl2 residual up to 1
mg/L if you add Cl2 continously.
Transcribed Image Text:For the problem described below, please fully sketch the scenario described in the problem statement, characterize the mass balance (conservative vs non- conservative and steady-state vs not at steady-state) giving reasons for your characterization of the system, and locate the mass balance in both space and time. Please DO NOT solve the problem. Coming home after the end of the winter semester, you find that your family's swimming pool has not be maintained well. In particular, it has no chlorine residual at all, and it is full of tree leaves. You buy a concentrated chlorine solution (1% as Cl₂) and begin to meter it into the pool at a rate of 100 mL/hour. The pool has a volume of 200 m³. You also add new water, and remove in-pool water, at a rate of 3.785 L/minute. The chlorine reacts with the organic matter in the with a rate of 0.5/hour. How long will it take to get the Cl2 residual up to 1 mg/L if you add Cl2 continously.
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