The oxidation of sulfur dioxide by oxygen to sulfur trioxide has been implicated as an important step in the formation of acid rain: 2 SO2(g) + O2(g) ⇌ 2 SO3(g). If the equilibrium partial pressures of SO2, O2, and SO3 are 0.564 atm, 0.102 atm, and 0.333 atm respectively at 1000 K, what is K p at that temperature?

The value of the equilibrium constant at this temperature is 3.42.

Explanation:

Partial pressure of the sulfur dioxide =

Partial pressure of the oxygen gas =

Partial pressure of the sulfur trioxide =

The expression of an equilibrium constant is given by :

The value of the equilibrium constant at this temperature is 3.42.