Chemistry

Problem

The equilibrium constants at 298 K for the following reactions are provided: (1) X₂(g) ⇌ 2 X(g)

K_{1} = 2.5 \times 10^{-4}

(2) 2 X(g) + Y₂(g) ⇌ 2 XY(g)

K_{2} = 4.0 \times 10^{3}

Calculate the equilibrium constant

K

for the overall reaction X₂(g) + Y₂(g) ⇌ 2 XY(g) at 298 K.