5.111SC | Fall 2014 | Undergraduate

Principles of Chemical Science

Unit V: Chemical Kinetics

Lecture 34: Kinetics: Catalysts

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Image excerpted from Lecture 34 Notes 

  1. Introduction to Catalysis
  2. Types of Catalysts
  3. Catalysts of Life and Enzyme Catalysis

Lecture Video

A catalyst is a substrate that speeds up a reaction without being consumed. Catalysts lower the activation energy barrier for a reaction without changing the equilibrium constant. In this lecture, catalysts of different types are introduced, including Nature’s catalysts, enzymes. We also hear from Chemist Jingnan Lu about why knowledge of kinetics is important for the development of biofuels.

Lecture Notes

Notes for Lecture 34 (PDF)

Clicker Questions

Lecture 34 Clicker Questions (PDF)

Textbook Reading

Catalysis Section 14.14 Section 13.14
Living Catalysts: Enzymes Section 14.16 Section 13.16

Engineering Enzyme Pathways for Biofuel Development

Jingnan Lu’s research focuses on converting carbon dioxide, an environmental pollutant, into biofuel. Jingnan explains how she engineers a carbon-storing microorganism into a biofuel production pathway. She discusses kinetic parameters she is able to change, such as using a more efficient enzyme (a catalyst) and increasing substrate concentration to speed up the production of biofuels.

Jingnan Lu’s Personal Story

Jingnan Lu describes how she overcame the challenge of learning English as a teenager when she moved to the United States from China and realized from a research experience that she can use science to help people.

Problems and Solutions

Problems for Lecture 34 (PDF)

Solutions for Lecture 34 (PDF)

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Fall 2014
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