A 25 L Flask Is Filled with 0 $\rightleftharpoons$ 2 SO₂(g) + O₂(g)
A) [SO₃] Will Decrease Because Q

A 2.5 L flask is filled with 0.25 mol SO₃, 0.20 mol SO₂, and 0.40 mol O₂, and allowed to reach equilibrium. Assume the temperature of the mixture is chosen so that K_c = 0.12. Predict the effect on the concentration of SO₃ as equilibrium is achieved by using Q, the reaction quotient. 2 SO₃(g) $\rightleftharpoons$ 2 SO₂(g) + O₂(g)

A) [SO₃] will decrease because Q > K.
B) [SO₃] will decrease because Q < K.
C) [SO₃] will increase because Q < K.
D) [SO₃] will increase because Q > K.
E) [SO₃] will remain the same because Q = K.