Class 6

Catalyst and Charge Conservation

Class 6 describes enzymes, homogeneous catalysts and heterogeneous catalysts. It explains that when a mechanism involves enzymes, catalysts, or charged reagents, a conservation equation applies to the concentrations of the intermediates, and show how such equations are used when generating mechanistic rate expressions.

Learning Outcomes

After completing Class 6 you should…

1. be able to define enzymes, homogeneous catalysts, heterogeneous catalysts, and surface coverage
2. be able to explain why catalyst complexes, enzyme complexes, charged reagents, and surface species are treated like reactive intermediates when generating mechanistic rate expressions
3. be able to write equations for the conservation of catalyst, enzyme, charge, or surface sites and use them when generating mechanistic rate expressions
4. know that an equation for the conservation of catalyst, enzyme, charge, or surface sites reduces the number of mathematically independent Bodenstein steady state approximation equations by one

Preparation Assignment

• Read Chapter 5 through section 5.2.6, Section 5.2.8, and Examples 5.3.4 through 5.3.6 of Reaction Engineering Basics
• Watch Class 6 Preparation Video

Class 6

• Class 6 Video (forthcoming on YouTube)

Practice Assignment

• Class 6 Practice Assignment Narrative (forthcoming)
• Class 6 Practice Assignment Solution (forthcoming)

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