A tank contains 8 liters of water in which is dissolved 32 grams of chemical. A solution containing 2 g/L of the chemical flows into the tank at a rate of 4 L/min, and the well-stirred mixture flows out at a rate of 2 L/min. (a) Determine the amount of chemical in the tank after 20 minutes. (b) What is the concentration of chemical in the tank at that time?

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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A tank contains 8 liters of water in which is dissolved 32 grams of chemical. A solution
containing 2 g/L of the chemical flows into the tank at a rate of 4 L/min, and the well-stirred
mixture flows out at a rate of 2 L/min.

(a) Determine the amount of chemical in the tank after
20 minutes.

(b) What is the concentration of chemical in the tank at that time?

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