Question: QUESTION 2 Answer BOTH parts (a) and (b) (25 marks) A liquid phase reactant A with concentration Cao is passed through two Mixed Flow Reactors

QUESTION 2 Answer BOTH parts (a) and (b) (25 marks) A

QUESTION 2 Answer BOTH parts (a) and (b) (25 marks) A liquid phase reactant A with concentration Cao is passed through two Mixed Flow Reactors (MFR) in series with volumes Vi and V2 respectively. The volumetric flow rate of the reactant is V, and it undergoes a first order reaction, A R, with rate constant k. The conversion in the intermediate product stream leaving the first MFR is XA1. The conversion to be achieved in the final product stream leaving the second MFR, XA2, is 90%. (a) Write down expressions for Vi and V2 in terms of the parameters provided. (10 marks) (b) Hence, by differentiation or otherwise, determine the optimal value of Xai that will minimize the total volume of the two MFRs, VT, where V1 = V1 + V2. (15 marks) =

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