For the gaseous reaction 2A(g) + B(g) ⇌ 3C(g)

CHEMISTRY · Single correct · A Level · Chemistry · Chemical equilibria (Le Chatelier’s principle and Kc) · Chemical equilibria (Le Chatelier’s principle and Kc)

Problem

For the gaseous reaction 2A(g) + B(g) ⇌ 3C(g), which of the following expressions correctly represents the equilibrium constant KK in terms of molar concentrations? (a) K=[A]2[B][C]3K = \dfrac{[A]^2[B]}{[C]^3} (b) K=[C]3[B][A]2K = \dfrac{[C]^3[B]}{[A]^2} (c) K=[C]3[A]2[B]K = \dfrac{[C]^3}{[A]^2[B]} (d) K=[C][A][B]K = \dfrac{[C]}{[A][B]}

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