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X2(g) + Y2(g) ⇌ 2 XY(g) Kc = 3.0 A mixture of X2(g) , Y2(g) , and XY(g) is placed in a previously evEquilibrium Chemistry Question

Question

X2(g) + Y2(g) ⇌ 2 XY(g) Kc = 3.0

A mixture of X2(g) , Y2(g) , and XY(g) is placed in a previously evacuated, rigid container and allowed to reach equilibrium at a constant temperature, as shown above. Which of the following sets of initial concentrations would lead to the formation of more product as the system moves toward equilibrium?

A.

[X2]initial = 0.40 M, [Y2]initial = 0.40 M, [XY]initial = 0.20 M

✓ Correct
B.

[X2]initial = 0.30 M, [Y2]initial = 0.30 M, [XY]initial = 0.90 M

C.

[X2]initial = 0.15 M, [Y2]initial = 0.15 M, [XY]initial = 0.30 M

D.

[X2]initial = 0.10 M, [Y2]initial = 0.10 M, [XY]initial = 0.20 M

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