# CHMA11H3 Chapter 14: Key Terms & Concepts

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16 Feb 2011
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## Document Summary

the condition in which the rate of the forward reaction equals the rate of the reverse reaction. as concentration of product increases, and concentrations of reactants decrease, rate of forward reaction slows down and rate of reverse reaction speeds up. Law of mass action: ex: aa + bb < -- > cc + dd. k < 1, reverse reaction is favored. k = 1, neither direction is favored. k > 1, forward reaction is favored. Ice tables are used to calculate initial concentrations, the change in concentration, and the equilibrium concentration. reactions quotient (qc & qp) is the ratio of the concentrations of the products raised to their stoichiometric coefficients divided by the concentration of the reactants raised to the their stoichiometric coefficients. the value of q relative to k is a measure of the progress of the reaction toward equilibrium. At equilibrium, the reaction quotient is equal to the equilibrium constant.