17 At 700 K, the reaction 2502(g) + O2(g) = 2503(g) has the equilibrium constant K = 4.3 x 104, and the following concentrations are present: [502] = 0.10 M; (SO3) = 10 M; [02] = 0.10 M. Which of the ? following is true based on the above Qc = Kc, the reaction is currently at equilibrium A Qc Kc, the reaction proceeds from right to left to reach equilibrium Qc Kc, the reaction proceeds from left to right to reach equilibrium