Homework Help: chemistry

Posted by Mckayla on Friday, March 2, 2012 at 6:50pm.

2CO2(G)--->2CO(g)+O2(g), deltaH=566kj
what is Kc and state whether the reaction favors products or reactants?
A.)[CO2]=1.5M, [CO]=1.2M, [O2]=0.05M
B.)[CO2]=8.3M, [CO]=0.05M, [O2]=0.50M
C.)[CO2]=0.05M, [CO]=0.75M, [O2]=0.07M

any work would be much appreciated!!!thank you

chemistry - DrBob222, Friday, March 2, 2012 at 10:06pm
Kc = (right side)/(left side) with coefficients as exponents.
Kc = (CO)^2(O2)/(CO2)^2
Plug in values and calculate. If k is >1, products favored. If Kc<1, reactants favored.

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