052809_hw8

052809_hw8 - 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. 8 Due Tuesday, June 4, 2009 Problem 1: Hill, 4-1, pg. 120 Houser and Lee [ J. Phys. Chem ., 71 , 3422 (1967)] have studied the pyrolysis of ethyl nitrate using a stirred flow reactor. They have proposed the following mechanism for the reaction: Initiation: C 2 H 5 ONO 2 1 k ⎯⎯→ C 2 H 5 O + NO 2 Propagation: C 2 H 5 O 2 k CH 3 + CH 2 O CH 3 + C 2 H 5 ONO 2 3 k CH 3 NO 2 + C 2 H 5 O Termination: 2 C 2 H 5 O 4 k CH 3 CHO + C 2 H 5 OH (a) What rate expression is consistent with this mechanism? (b) Since these investigators carried out their study in a stirred flow reactor, they were able to measure the reaction rate directly as a function of ethyl nitrate concentration. They have reported the following data: Is the proposed mechanism consistent with these data? What are the order of the reaction and the rate coefficient that they observed experimentally?
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2 Problem 2: Fogler, 8-5, pg. 573
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This note was uploaded on 12/29/2011 for the course CHE 140b taught by Professor Ceweb during the Fall '10 term at UCSB.

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052809_hw8 - Department of Chemical Engineering University...

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