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Midterm 1 Exam

# Midterm 1 Exam - CHEN 4330 Spring 2009 Midterm Exam...

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CHEN 4330 – Spring 2009 Midterm Exam – 1 (Version B) March 2 nd , 2009 Please show your work and briefly explain your steps. Each part of each problem is worth 10 points. You do not need to do the exam in the order given, of course. Student Name :___________________________ On my honor as a University of Colorado at Boulder student I have neither given nor received unauthorized assistance on this work. ______________________________ Student Signature

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Problem 1 : An irreversible gas phase reaction 2A B is carried out in a PFR at a constant T and P of 1000K and 2 atm. Pure A is fed to the reactor at 0.2 dm 3 /min. The reaction follows an elementary rate law with a rate constant of 0.02 dm 3 /mol-min and activation barrier of 75 kcal/mol. a. What volume is needed to achieve a conversion of 0.4? b. What volume is needed to achieve a conversion of 0.4 at a temperature of 900K? c. Write an expression (but do not evaluate the integral) for the volume to achieve a conversion X for a reversible reaction with equilibrium constant K C .
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Midterm 1 Exam - CHEN 4330 Spring 2009 Midterm Exam...

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