CHM 112 Chapter Notes - Chapter 9: Hydrogenation, Alkene, Rate Equation

• School: University of Miami
• Department: Chemistry
• Course: CHM 112
• Professor: Hoff Carl

Document Summary

A( frequency factor) -->the number of times that the reactants approach the activation barrier per unit time. Collision mode/theory -->a reaction occurs after a sufficiently energetic collision between two reactant molecules. Orientation factor -->fraction of collisions with an orientation that allows the reaction to occur. Collision frequency -->number of collisions that occur per unit of time, must collide with enough energy to overcome ea. Reaction mechanism -->the series of individual steps by which an overall chemical reaction occurs. Elementary step -->an individual step in a reaction mechanism that can"t be broken down into any simpler steps, corresponds to the direct collision of molecules. Rate- determining step -->the step in a reaction mechanism that occurs much more slowly than any of the other steps, which limits the overall rate of reaction and determining the rate law. Catalyst -->speeds up the rate of a reaction by lowering the activation energy but is not consumed by the reaction.