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3) Consider a PFR, CSTR, and LFR. = [ (-+) Elodi m (a) Evaluate the first moment about the mean for a PFR, a CSTR, and a laminar flow reactor. (b) Calculate the conversion in each of these ideal reactors for a second-order liquid- phase reaction with t = 2 min and kCAo = 0.5 min! (10) 4) A pulse input to a vessel gives the results shown below 0.05 M= 1 mol at t = 0 v = 4 liters/min pulse, mol/liter V = ? 5 1, min (a) Check the material balance with the tracer curve to see whether the results are consistent (b) If the result is consistent, determine tm (mean residence time), V and sketch the E curve