sessment3. Determine the correct expression for the equilibrium constant, Kc, for each reaction. Drag each formula to the correct column on the chart. All reactant and product concentrations are equilibrium concentrations.ReactionKcO2(l) ⇋ O2(g)2O3(g) ⇋ 3O2(g)2SO2(g) + O2(g) ⇋ 2SO3(g)2SO3(g) ⇋ 2SO2(g) + O2(g) Kc = [O2]3/ [O3]2Kc = [SO3]2 / [SO2]2 [O2]Kc = [SO2]2 [O2] / [SO3]2Kc = [O2]
Question
sessment3. Determine the correct expression for the equilibrium constant, Kc, for each reaction. Drag each formula to the correct column on the chart. All reactant and product concentrations are equilibrium concentrations.ReactionKcO2(l) ⇋ O2(g)2O3(g) ⇋ 3O2(g)2SO2(g) + O2(g) ⇋ 2SO3(g)2SO3(g) ⇋ 2SO2(g) + O2(g) Kc = [O2]3/ [O3]2Kc = [SO3]2 / [SO2]2 [O2]Kc = [SO2]2 [O2] / [SO3]2Kc = [O2]
Solution
The equilibrium constant, Kc, is determined by the concentrations of the products divided by the concentrations of the reactants, each raised to the power of their stoichiometric coefficients in the balanced chemical equation.
For the reaction O2(l) ⇋ O2(g), the equilibrium constant Kc would be [O2(g)] / [O2(l)].
For the reaction 2O3(g) ⇋ 3O2(g), the equilibrium constant Kc would be [O2(g)]^3 / [O3(g)]^2.
For the reaction 2SO2(g) + O2(g) ⇋ 2SO3(g), the equilibrium constant Kc would be [SO3(g)]^2 / ([SO2(g)]^2 * [O2(g)]).
For the reaction 2SO3(g) ⇋ 2SO2(g) + O2(g), the equilibrium constant Kc would be ([SO2(g)]^2 * [O2(g)]) / [SO3(g)]^2.
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