CHEM101 Lecture Notes - Lecture 13: Radioactive Decay, Reagent, Reaction Mechanism
Document Summary
Kinetics: kinetics aim is to have a controlled flow of energy (controlled rate of reaction, reactions, fast and slow, depend on breaking and making bonds or transformations of some kind. Radioactive decay rates: half life (decay rate) = the amount of time taken for a given amount of substance to decay to half its initial value. In the graph, the same amount of calcium carbonate will produce the same amount of product but at different rates. The concentration of the reactants: the reaction will change if the concentration of one or more reactants is also changes (due to changed chance of collisions) The temperature at which the reaction occurs: kinetic molecular theory tells us that the higher the temperature, the higher the reactant velocity, higher ke more reactant collisions with higher energy. The pathway taken or mechanism involved: correct orientation molecules approach with the correct orientation so that atoms form new bonds, e. g.
