Problem: Consider the reaction: 2SO2(g) + O2(g) ⇌ 2SO3(g)When 0.60 atm of SO2 and 0.40 atm of O2 are placed in a container, the reaction proceeds and it is found that 0.50 atm of SO3 is produced at equilibrium. Calculate the value of Kp for this reaction.A. 75B. 33C. 90D. 120E. 170

FREE Expert Solution

We are being asked to calculate the equilibrium constant, Kp, for this reaction:

2 SO2(g) + O2(g) ⇌ 2 SO3(g)

Recall that the equilibrium constant is the ratio of the products and reactants. We use Kp when dealing with pressure:

Kp=PproductsPreactants

only aqueous and gaseous species are included in the equilibrium expression
▪ the coefficient of each compound in the reaction equation will be the exponent of the concentrations in the equilibrium expression

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Problem Details

Consider the reaction: 2SO2(g) + O2(g) ⇌ 2SO3(g)

When 0.60 atm of SO2 and 0.40 atm of O2 are placed in a container, the reaction proceeds and it is found that 0.50 atm of SO3 is produced at equilibrium. Calculate the value of Kp for this reaction.

A. 75

B. 33

C. 90

D. 120

E. 170

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