5.111 Principles of Chemical Science
5.111 Principles of Chemical Science (Fall 2014, MIT OCW). Instructor: Professor Catherine Drennan. This course provides an introduction to the chemistry of biological, inorganic, and organic molecules. The emphasis is on basic principles of atomic and molecular electronic structure, thermodynamics, acid-base and redox equilibria, chemical kinetics, and catalysis. One year of high school chemistry is the expected background for this freshman-level course.
Lecture 33 - Kinetics and Temperature. Using liquid nitrogen, we observe that lowering the temperature slows reaction rates. The concept of activation energy is introduced; there is always some energy needed when two molecules come together that allows them to react. Only molecules that have this critical energy, and can overcome this activation energy barrier, will react and go on to product. Lower temperature means that fewer molecules with have this critical amount of energy.
(from ocw.mit.edu)
| Lecture 33 - Kinetics and Temperature |
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