For the following reaction at 1100 K, Kp= 0.25 2SO2(g) + O2(g) ⇌ 2SO3(g) (a) What is the value of the equilibrium constant Kc at 1100 K?

Chemistry: The Molecular Science
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Author:John W. Moore, Conrad L. Stanitski
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Chapter12: Chemical Equilibrium
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For the following reaction at 1100 K, Kp= 0.25

2SO2(g) + O2(g) ⇌ 2SO3(g)

(a) What is the value of the equilibrium constant Kc at 1100 K?

(b) If 0.500 mole of SO3were placed in an evacuated, 1.00-L reaction vessel and the above equilibrium is established at 1100 K, what would be the concentrations of SO2, SO3, and O2 at equilibrium?

(c) Calculate the partial pressures of SO2, SO3, and O2, respectively, in the equilibrium mixture.

(Hint: To solve part (b), find Kc for the reaction: 2SO3(g) ⇌ 2SO2(g) + O2(g), and use the iteration method to calculate [SO2], [SO3] and [O2])

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