Answer
-204 kJ/mol
Work Step by Step
We find:
$\Delta G^{\circ}_{rxn}=\Delta G_{f}^{\circ}=-RT\ln K_{p}=-(8.314\,Jmol^{-1}K^{-1})(298\,K)(\ln 5.62\times10^{35})$
$=-204\times10^{3}\,J/mol=-204\,kJ/mol$
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