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A tank contains 40 liters of a chemical solution prepared by dissolving 80 g of a soluble substance in fresh water. Fluid containing 2 g of this substance per liter runs in at the rate of 3 l/min and the well-stirred mixture runs out at the same rate. Find the amount of substance in the tank after 20 minutes.

A tank contains 40 liters of a chemical solution prepared by dissolving 80 g of a soluble substance in fresh water. Fluid containing 2 g of this substance per liter runs in at the rate of 3 l/min and the well-stirred mixture runs out at the same rate. Find the amount of substance in the tank after 20 minutes.

Advanced Engineering Mathematics
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Topic: Differential Equation - Dilution (Show complete solution)
A tank contains 40 liters of a chemical solution prepared by dissolving 80 g of a soluble substance in fresh water. Fluid containing 2 g of this substance per liter runs in at the rate of 3 l/min and the well-stirred mixture runs out at the same rate. Find the amount of substance in the tank after 20 minutes.
Transcribed Image Text:A tank contains 40 liters of a chemical solution prepared by dissolving 80 g of a soluble substance in fresh water. Fluid containing 2 g of this substance per liter runs in at the rate of 3 l/min and the well-stirred mixture runs out at the same rate. Find the amount of substance in the tank after 20 minutes.
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