The equilibrium constants at 298 K for the following reactions are provided: (1)…

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

Problem

The equilibrium constants at 298 K for the following reactions are provided: (1) X₂(g) ⇌ 2 X(g)  K1=2.5×10−4K_{1} = 2.5 \times 10^{-4} (2) 2 X(g) + Y₂(g) ⇌ 2 XY(g)  K2=4.0×103K_{2} = 4.0 \times 10^{3} Calculate the equilibrium constant KK for the overall reaction X₂(g) + Y₂(g) ⇌ 2 XY(g) at 298 K.

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