Question: Consider the mixing tank treated in Problem 7.6. Generalize the model to the case where the tank's volume is V m3. For quality control purposes,

Consider the mixing tank treated in Problem 7.6. Generalize the model to the case where the tank's volume is V m3. For quality control purposes, we want to adjust the output concentration so by adjusting the input concentration so How much volume should the tank have so that the change in so lags behind the change in si by no more than 20 s?

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