CHM ENG 142 Midterm: cheme142-sp2009-mt2-Iglesia-exam

• School: Berkeley
• Department: Chemical and Biomolecular Engineering
• Course: CHM ENG 142
• Professor: All

Document Summary

The exam is 110 points total and 20% of the course grade. Only answers written in the blue book will be graded. (except for any work shown in the graph for problem 1c) The pfr operates isothermally at t0 and isobarically at p0. This reaction occurs in a wall-cooled cstr (v=10 dm3), with ua = 10 w/k and ta = t0. The inlet stream is an equimolar mixture of a and b, entering at v0 = 100 dm3/min and. Use the g(t) plot (provided on the next page) to answer the following questions: (i) determine the extinction and ignition temperatures (provide numbers) when the coolant is shut off and the reactor becomes adiabatic. Two cstrs are placed in perfect thermal contact with each other and have no other heat transfer to the surroundings. In cstr 1, the following elementary, liquid-phase reaction takes place: 50 kj mol-1; k1 = 0. 5 min-1 at 500 k.