Question 7 Tries remaining: 3 Points out of 3.0 Flag question 4. A CSTR is being designed to accommodate a waste stream having a flow of 5.0 m³/hr and a contaminant concentration of 80.0 mg/L. The contaminant is expected to be removed by a second-order reaction with a reaction rate coefficient of 0.05 L/mg.hr. The outflow from the CSTR is to required to have a concentration of 20.0 mg/L. a. Draw a diagram of the CSTR and write the appropriate mass balance equation. b. Calculate the required hydraulic detention time of the reactor. hrs Check

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