CHEM 112 Chapter 14: Section 14.1
26 Jan 2019
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Document Summary
Chemical reactions: speed or rate is influenced by external factors. Chemical reactivity: controlled by the thermodynamics and kinetics of the reaction. Chemical kinetics: study of reaction mechanisms and the rates of chemical reactions under various conditions. Reaction must be thermodynamically favored enough to form the amount of product desired. Thermodynamics of a reaction are controlled by: Kinetics of a reaction are influenced by: Manner in which the reaction takes place. Energy barrier that must be overcome to convert reactants to products. Temperature at which the reaction takes place. Speed at which a reaction occurs can be explained by the behavior of reaction species on a molecular level. A reaction occurs only when three conditions are met: Collision has enough energy to overcome the activation energy. Activation energy: energy barrier necessary to initiate the reaction. Reaction species collide in an orientation that allows the necessary bond breaking and bond forming needed to transform reactants to products to take place.
