CHEM 1032 Lecture 15: 2/17/2017 Reaction Mechanisms; Catalysis
Document Summary
12. 6 reaction mechanics: reaction mechanism: the process by which the reaction occurs, chemical reaction occurs in steps, elementary reaction: each step in the reaction. The unimolecular reaction can be one of many elementary reactions in a complex reaction. A + b products: rate= k[a][b] It limits the rate of overall reaction: with ordinary chemical reactions, rate laws cannot be derived directly from the formula. They are usually multistep: deduce rate law form experimental data and deduce mechanism from rate law, ex. Smallest value of k: have to be told something about the steps in the reaction, which is the reaction intermediate?, nocl2. Chapter 14 - chemical equilibrium: dynamic equilibrium, h2 (g) + i2 (g) h2 (g) + i2 (g) 2hi (s, is reversible, use double sided arrow. \rate of forward reaction equals rate of the reverse reaction: this does not mean that the reaction has stopped.
