Finding Kp given the final equilibrium pressure

[ebunny91]

Homework Statement

When two moles of CO are introduced into a vessel containing solid sulfur, the final equilibrium pressure is 1.03 atm. Determine Kp for the reaction:

S(s) + 2CO(g) <--> SO2(g) + 2C(s)

Homework Equations

Kp=P(products)/P(reactants)

Mole Fraction = mole of A/ total moles

The Attempt at a Solution

I know Kp=P(products)/P(reactants)

So I have Kp=[SO2]/[CO2]^2, I left the S and the C out because they are solids.

I am not sure what to do with the final equilibrium pressure.

 

[Borek]

Is it all data given? If so, looks to me like there is not enough information to solve the problem.

Usually final pressure can be used to find out how far reaction proceeded (using stoichiometry), but it can't be done in this case.