Elements of
Chemical Reaction Engineering
6th Edition



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Essentials of
Chemical Reaction Engineering
Second Edition

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Chapter 8: Multiple Reactions

Additional Homework Problems

CDP8-ND

(Flame retardants) We now reconsider a more comprehensive version of the combustion of CO. The reactions and their corresponding rate law parameters are given in the table below. All reactions are assumed to be elementary [Combustion and Flame, 69 113 (1987)]. The precombustion compositions (mol %) are:

Without HCl:      20% CO      10% O2      1% H2      69 % N2


With HCl:      20% CO      10% O2      1% H2      67 % N2      2% HCl



  1. Plot the mole fraction of each species and free radicals as a function of time for both uninhibited and inhibited combustion.

  2. Repeat part (A) for different temperatures and pressures.

(S. Senkin, UCLA)

[3rd Ed. P6-21]