CHEM1100 Study Guide - Rate Equation, Reaction Rate Constant
Document Summary
Spontaneity: the inherent tendency of the reaction to occur, not the rate at which the reaction will occur. Rate of reaction: how long it takes a system to reach equilibrium. Determined by rate of disappearance of reactants, or rate of appearance of the products. Expressed as a positive number to indicate forward movement. Rate = concentration / time (units conc. per unit time - mol l-1 s-1) Factors affecting rate of reaction: chemical nature of the reactants, ability of the reactants to come in contact surface area for heterogeneous reactants, temperature, concentration. C increases at same rate that a and b disappear. B increases at 2times rate that a disappears. Rate laws: relationship between the rate of the reaction and the concentrations of reactants. Where n is the order in terms of reactant [a] and m is the order in terms of reactant [b] N + m is the overall order of the reaction.
