CHEM 1214 Lecture Notes - Lecture 2: Limiting Reagent, Arrhenius Equation, Radioactive Decay
15 Sep 2016
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Reaction order: rate law: rate = k[a]x[b]y. Lecture notes initial rate: rate of a reaction at t = 0, immediately after the reactants are mixed. Reaction order: experimentally determined number defining the dependence of the reaction rate on the concentration of a reactant. Rate law: equation that defines the experimentally determined relationship between reactant concentrations and the rate of the reaction. Overall order of reaction: sum of exponents for the concentration terms in the rate law. Rate constant (k): proportionality constant that relates the rate of a reaction to the concentration of reactants: example: ma + nb c. Rate law: rate = k [a]m [b]n: k = rate constant, m and n are the reaction orders with respect to reactants a and b, (m + n ) = overall order. Increasing concentrations increases collisions between reactants, leading to formation of products. Integrated rate law (1st order): mathematical expression describing the change in concentration of a reactant with time.
