A mixture containing 0.392 M A(g)and 0.452 M B(g)is allowed to come to equilibrium at 300 K.The reaction 3 A(g)+ 2 B(g)⇌ C(g)+ D(g)occurs.At equilibrium,[C] = 0.00128 M.What is the value of K_c?

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Quizplus · Accepted Answer

To find Kc, use the equilibrium expression: Kc = [C][D] / ([A]^3[B]^2). At equilibrium, [C] = 0.00128 M, and since the stoichiometry is 1:1 for C and D, [D] = 0.00128 M. The change in concentration for A and B can be calculated using stoichiometry, and then substituted into the expression to find Kc.

A Mixture Containing 0