A 25 L Flask Is Filled with 0

question 49

Multiple Choice

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

• A) The partial pressure of SO₃ will decrease because Q > K.
• B) The partial pressure of SO₃ will decrease because Q < K.
• C) The partial pressure of SO₃ will increase because Q < K.
• D) The partial pressure of SO₃ will increase because Q > K.
• E) The partial pressure of SO₃ will remain the same because Q = K.

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