A 1.0 dm3 reaction vessel contains initially 1.0 mol of N2O4(g) and 1.0 mol of NO2(g).
At equilibrium, 0.75mol of N2O4(g) are present.
What is the value of Kc?
The Attempt at a Solution
Right answer = D, but I do not why. My attempt for Kc is (3/4)^2 / (9/8) = 0.5, so wrong answer. Please, help me with this stricky one.
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