chem help2...?

Question

What is the minium kelvin temperature the system must be heated to to make the below reaction product favored ?
Zn (s) + Al2O3 (s) → ZnO (s) + Al (s)
I balanced it out to be :
3Zn(s) + Al2O3 (s) > 3ZnO(s) + 2Al(s)
I tried this problem like 5 times but dont get the right temp...

Answer 1

OMG you tried it LIKE 5 times. wow just give up then!!!

Answer 2

Did you use the eq, G = H - T*S, where T is temperature?
To favor the reaction product, G must be less than 0.
Then, you have to calculate the H and S value for the equation (these values can usually found at the end of the chem book).
Then solve for T, which is in Kelvin (set G=0)

Answer 3

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