NSCI 1322 Lecture Notes - Lecture 47: Anatol Zhabotinsky, Chemical Clock, Equilibrium Constant
12 Jan 2017
School
Department
Course
Professor
Document Summary
A homogeneous equilibrium is an equilibrium that involves reactants and products in a single phase. Catalytic methanation is an example of a homogeneous equilibrium; it involves only gaseous reactants and products. On the other hand, a heterogeneous equilibrium is an equilibrium involving reactants and products in more than one phase. In writing the equilibrium-constant expression for a heterogeneous equilibrium, you omit concentration terms for pure solids and liquids. The russian chemist boris p. belousov reported one of the first oscillating reactions in. 1958, in which the reaction cycled back and forth over time from one color to another. Another russian chemist, anatol zhabotinsky, improved the experiment, leaving no doubt that some chemical reactions do oscillate. And when the chemicals are placed in a gel in a flat dish, the colors appear as a pattern of waves in space rather than as oscillations in time.
