042809_hw5

042809_hw5 - Department of Chemical Engineering University...

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1 Department of Chemical Engineering Spring, 2009 University of California, Santa Barbara CHE 140A Problem Set No. 5 Due Tuesday, May 5, 2009 Problem 1: Fogler, 3-13(g), p. 136 The formation of nitroanalyine (an important intermediate in dyes called ‘fast orange’) is formed from the reaction of ortho -nitrochlorobenzene (ONCB) and aqueous ammonia. (See Table 3-1 and Example 9-2.) The liquid-phase reaction is first-order in both ONCB and ammonia with k = 0.0017 m 3 /kmol min at 188 °C with E act = 11,273 cal/mol. The initial entering concentrations of ONCB and ammonia are 1.8 kmol/m 3 and 6.6 kmol/m 3 , respectively. (g) What would be the corresponding CSTR reactor volume at 25 °C to achieve 90% conversion at 25 °C and at 288 °C for a molar feed rate of 2 mol/min: at 25 °C? V = _______ at 288 °C? V = _______ Problem 2: Schmidt, 2.5, p. 82 We want to hydrolyze 500 lb per day of an ester at an initial concentration of 5 M (the ester has a molecular weight of 120 g/mol) in aqueous basic solution in a batch process,
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042809_hw5 - Department of Chemical Engineering University...

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