Rate law

• Rate Law is the mathematical relationship between rate, concentration, and temperature.
• The rate determining step is the slowest step in a chemical reaction that determines the overall rate of the reaction.
• The units of the rate constant are determined by the units used to express the concentrations.
• If [B]^3 appears in the rate expression, then B must be third-order with respect to B.
• If [A]^2 appears in the rate expression, then A must be second-order with respect to A.
• A catalyst increases the rate of a reaction by lowering the activation energy without being consumed or changed during the process.
• First-order reactions have a rate proportional to the concentration of one species.
• A zero-order reaction has a rate proportional to the initial concentration of reactants.
• Second-order reactions have a rate proportional to the square root of the concentration of one or more species.
• Second-order reactions have higher activation energies than first-order reactions.