Question: A continuous feed agitated tank is initially filled with 500 liters of solution containing 31% salt. At 1 =0, the solution F containing 4 kg/L

A continuous feed agitated tank is initially filled with 500 liters of solution containing 31% salt. At 1 =0, the solution F containing 4 kg/L salt is fed to the tank with a flow rate of 4L/min and the salt mixture is taken from the tank with a flow rate of 8 L/min. Assuming that the tank is well mixed, calculate the salt concentration (kg/L) in the tank after 39 minutes.

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