A completely mixed chemical reactor has an in fluent flow with conc. 150 mg/L of A and a flow rate of 100 gal/min (380 L/min). The reaction is first order, The rate equation : - dC/dt = KCa= -ra ( and the rate constant is 0.4 h^-1) Determine: a- The required detention time and volume of the reactor if the effluent contains 20 mg/L of A. Express the volume as gallons and liters. b- A plot of percent Ca removed or converted versus the detention time. c- How many times larger a completely mixed reactor must be than a plug flow reactor for 90% removal or conversion. Please solve the question by numbers and steps and don`t give me links