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Unformatted text preview: reaction Reaction must be reversible Dynamic Equilibrium A system at equilibrium has not stopped reacting! A system is at equilibrium when: Rates of forward and reverse reactions are equal Concentrations of reactants and products are constant Net change of the reaction is equal to zero Notice the difference between the two graphs! Conclusions: Only reversible reactions can be at equilibrium Equilibrium means that two opposite processes are occurring at the same rate Three types of equilibrium systems exist: o Phase occurs between a liquid and vapor o Solution must be saturated o Chemical reaction must be reversible At equilibrium, concentrations of product and reactant are constant and rates are equal...
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- Spring '11