Question

$K_P$ for the reaction,
$MgC{O}_3\left(s\right)\to MgO\left(s\right)+C{O}_2\left(g\right)$
is $9\times {10}^{-10}$.
Calculate $\Delta G^o$ for the reaction at ${25}^{o}C$

Answer 1

$\Delta G^0=2.303RT\log K_p$

$\Delta G^0=-2.303\times 8.314\times 298\log (9\times {10}^{-10})$

$\Delta G^0=51580.86J$