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) 2 SO₂(g)+ O₂(g)

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Quizplus · Accepted Answer

The reaction quotient, Q, is calculated by plugging in the initial concentrations of the reactants and products. Q = [SO₂]^2[O₂]/[SO₃]^2. Since the value of Q is less than the equilibrium constant, K, at the given temperature, it means that the reaction has not yet reached equilibrium and the concentrations of the products are lower than their equilibrium concentrations. Thus, to reach equilibrium, the concentration of the product SO₃ must increase, so the answer is B.

A 25 L Flask Is Filled with 0