Posted by Linda on Wednesday, February 29, 2012 at 9:23am.
Kp = pCO2
so would the answer be B?
No, and I gave you the wrong information because I didn't see an arrow sign and I though the CO2 was a product. It isn't, it's a reactant. Therefore,
Kp = 1/pCO2.
You need to find the partial pressure of the CO2 which you can do from PV = nRT.
You know V= 1L, you know R, T is 473K and n = number of mols. Since (CO2) = 0.150M and you have 1L, that is M x L = 0.150 moles. Substitute into PV = nRT and solve for pCO2. Then the reciprocal will give you Kp.
I get answer 0.172. Is that correct?
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