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# pset03 - 10.37 HW 3 Spring 2007 Problem 1 A CSTR of volume...

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10.37 HW 3 Spring 2007 Problem 1. A CSTR of volume 0.602 liters (constant density liquid phase) is operated in which the following reaction occurs: A + B C + D The feed rate of A is 1.16 liters/hr of a solution at concentration 5.87 mmol/L. The feed rate of B is 1.20 liters/hr at a concentration of 38.9 mmol/L. The outlet concentration of species A is 1.094 mmol/L. Calculate the rate constant for this reaction assuming a mass-action rate law of the form: r = k [ A ][ B ]. Problem 2. Consider the catalyzed reaction: A + B B + C with the second-order rate constant 1.15 x 10 -3 m 3 /mol/ksec. The rate law is r = k [ A ][ B ]. What volume of CSTR would be necessary to give 40% conversion of species A if the feed concentration of A is 96.5 mol/m 3 , the feed concentration of B is 6.63 mol/m 3 , and the flow rate is 0.5 m 3 /ksec? Problem 3. Two configurations of CSTRs are contemplated for performing reversible hydrolysis of compound A to produce compounds B and C. The forward reaction is pseudo-first-order with respect to A, with rate constant k 1 = 1.82 x 10 -4 s -1 . The reverse

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