EBK NUMERICAL METHODS FOR ENGINEERS
7th Edition
ISBN: 9780100254145
Author: Chapra
Publisher: YUZU
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Chapter 20, Problem 34P
As a member of Engineers Without Borders, you are working in a community that has contaminated drinking water. At t = 0, you add a disinfectant to a cistern that is contaminated with bacteria. You make the following measurements at several times thereafter:
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2 | 4 | 6 | 8 | 10 |
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430 | 190 | 80 | 35 | 16 |
If the water is safe to drink when the concentration falls below 5 #/100 mL, estimate the time at which the concentration will fall below this limit.
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5
6
7
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Quenching
Rate (°C/s)
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140
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Four trials were run for the experiments defined above:
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1
2
3
4
5
6
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68.00
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Chapter 20 Solutions
EBK NUMERICAL METHODS FOR ENGINEERS
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