Change in volume of the system does not alter which of the following equilibria?

Question

N₂(g) + O₂(g) $\leftrightharpoons$ 2NO (g)

PCl₅(g) $\leftrightharpoons$ PCl₃ (g) + Cl₂ (g)

N₂(g) + 3H₂(g) $\leftrightharpoons$ 2NH₃ (g)

SO₂Cl₂ (g) $\leftrightharpoons$ SO₂ (g) + Cl₂ (g)

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