## Answers

The general equation for this would be the following:

= ° + RTlnK

Now, the question said that the reaction once coupled with graphite, the reaction becomes spontaneous, this means that = 0, so the above equation will be reduced like this:

EDITED

0 = ° + RTlnK ---> From here we can solve for K so:

° = -RTlnK

K = exp (-°/RT)

So replacing now the values we have:

K = exp(-291400 / 8.3144*298)

K = 8.37x10^{-52}

Hope this helps

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