HELP!!! chemistry question about free energy and equilibrium!?

anonymous

New member
consider the following reaction:

PbCO3 (s)--->
<--- PbO(s)=CO2(g)

(sprru the equation looks funky, I don't know how to do the equilibrium arrows on the same line).

Calculate the quilibirium of CO2 in the system at 350 degrees celsius and 250 degrees celsius.

PLEASE tell me how to solve this step by step!
 
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