CHM1046 LECTURE NOTES 14 2 Equilibrium Reaction Dynamic Equilibrium they have equal rates The forward and backward reactions are in dynamin equilibrium meaning 14 3 The equilibrium constant K C c D d A a B b products over reactants and stoichiometry applies must have a balanced chemical equation to use this formula since stoichiometry matters liquids and solids are not considered in the equilibrium constant K only gases and aqueous solutions the significance of the equilibrium constant is seeing whether reactants or products are favored If given K values for 2 separate reactions the larger K means products are favored and the smaller K means reactants are favored If the equilibrium constant is large larger than unity that means the equilibrium of the reaction lies far to the right more products aka much higher concentration on the product side than on the reactant side if K 1 the reverse backward reaction is favored meaning the reactants are favored if K is 1 or almost equal to 1 then neither or both reactions are favored not one over the other if K 1 the forward reaction is favored meaning the products are favored more products Kbkwd 1 kfwd so if you know one of these take the reciprocal to find the other do example 14 2 in the book for practice
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