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For 2A ⇌ B + C, Kc = 2 × 10^-3 and [A] = [B] = [C] = 3 × 10^-4 M. The reaction goes:
Ain reverse direction
Bwith no net change
Cin an unknown way
Din forward direction
Answer & Solution
Correct answer: A. in reverse direction
Qc = (3e-4)(3e-4)/(3e-4)^2 = 1, far greater than Kc, so the reverse reaction occurs.
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