Chemical Reaction Engineering Asynchronous Video Series Chapter 7, Part 1: PSSH Enzyme Kinetics H. Scott Fogler, Ph.D.

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Presentation transcript:

Chemical Reaction Engineering Asynchronous Video Series Chapter 7, Part 1: PSSH Enzyme Kinetics H. Scott Fogler, Ph.D.

Active Intermediates/Free Radicals

Mechanism:

Active Intermediates/Free Radicals Mechanism:

Active Intermediates/Free Radicals Mechanism:

Active Intermediates/Free Radicals Mechanism:

Pseudo Steady State Hypothesis (PSSH) A * is an active intermediate that is highly reactive. It disappears as fast as it is formed.

Pseudo Steady State Hypothesis (PSSH) A * is an active intermediate that is highly reactive. It disappears as fast as it is formed.

Pseudo Steady State Hypothesis (PSSH) A * is an active intermediate that is highly reactive. It disappears as fast as it is formed.

Pseudo Steady State Hypothesis (PSSH) A * is an active intermediate that is highly reactive. It disappears as fast as it is formed.

Pseudo Steady State Hypothesis (PSSH) A * is an active intermediate that is highly reactive. It disappears as fast as it is formed.

Pseudo Steady State Hypothesis (PSSH) A * is an active intermediate that is highly reactive. It disappears as fast as it is formed.

Pseudo Steady State Hypothesis (PSSH)

Enzymes: Michaelis-Menten Kinetics

Urea Decomposition A given enzyme can only catalyze only one reaction. Urea is decomposed by the enzyme urease, as shown below.

Urea Decomposition A given enzyme can only catalyze only one reaction. Urea is decomposed by the enzyme urease, as shown below.

Urea Decomposition A given enzyme can only catalyze only one reaction. Urea is decomposed by the enzyme urease, as shown below. Rate Laws:

Urea Decomposition A given enzyme can only catalyze only one reaction. Urea is decomposed by the enzyme urease, as shown below. Rate Laws:

Urea Decomposition A given enzyme can only catalyze only one reaction. Urea is decomposed by the enzyme urease, as shown below. Rate Laws: If

Urea Decomposition

V MAX rPrP S KmKm

Urea Decomposition

Types of Enzyme Inhibition