Elements of
Chemical Reaction Engineering
6th Edition



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Essentials of
Chemical Reaction Engineering
Second Edition

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Chapter 9: Reaction Mechanisms, Pathways, Bioreactions and Bioreactors

Additional Homework Problems

CDP9-KB

The instantaneous number-average degree of polymerization, XN, can be expressed as

          (CDP7-N1)

(a)  Consider an additional termination step resulting from the combination of the initiator molecule and a free radical Rj:

          (CDP7-N2)

(b)  Show that

          (CDP7-N3)

where

(c)  Neglecting solvent transfer, show that

(d)  Explain how you can determine rate law parameters from experimental data obtained in a CSTR. Use sketches to elucidate your explanation.

(e)  Typical activation energies for the initiation, propagation, and termination steps are: 20 kJ/mol, 20 kJ/mol, and 9 kJ/mol. discuss the effect of temperature on free-radical polymerization.