For the reaction A + B ⇌ C + D, if Kc = 4 and concentrations of A, B, C, and D are 1M each, what is the direction of the reaction?
Q1. For the reaction A + B ⇌ C + D, if Kc = 4 and concentrations of A, B, C, and D are 1M each, what is the direction of the reaction?
Answer: Backward
Explanation: Qc = [C][D] / ([A][B]) = 1, which is less than Kc (4), so the reaction will proceed forward, but since Qc is not equal to Kc, it is not at equilibrium; the given Qc is for the reverse reaction, hence backward.