37. A 10,000 gallon holding tank receives an aqueous byproduct effluent stream from a continuous chemical process. The tank is well mixed and drains into a river. The tank receives 2400 gallons/day of a certain byproduct that decomposes in the tank with a rate coefficient of 0.2 h-1. (a) What fraction of the byproduct from the process enters the river? (b) At this flow rate what size tank would be required to react 99% of the byproduct before entering the river? ans: 4.8% b. 49 500 gallons a.