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146_2009_probset1corrected

146_2009_probset1corrected - ECH 146 Winter 2009 Problem...

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ECH 146 Winter, 2009 Problem Set 1 Due 1/12/09 This problem set requires application of the equations for ideal reactors and sometimes the use of data from one kind of ideal reactor for prediction of performance of another kind of ideal reactor. Solutions by hand with graphical methods are recommended, because they help to reinforce understanding of calculus and the principles of the ideal reactors and because quizzes and midterms may require graphing and hand calculation. 1. The reaction A B was observed to occur at constant temperature in a batch reactor initially with a composition of A at a concentration of 1.50 mol/liter in an inert solvent; there were no other components in the reactor initially. There was no volume change on reaction. The reaction is virtually irreversible. Data are shown in the following table: C A , concentration of A, mol/L t , time, min 1.50 0 0.67 10 0.31 20 0.18 30 0.12 40 0.085 50 0.069 60 0.060 70 A. Estimate the time required for conversion in the batch reactor to be 90%; find the time required for the conversion to be 95%.

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146_2009_probset1corrected - ECH 146 Winter 2009 Problem...

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