For a particular reaction at $121\mathrm{.}3C,G=53\mathrm{.}29k\frac{J}{m}ol,$ and $S=623\mathrm{.}51\frac{J}{\text{m}\text{o}\text{l}*K}.$ Calculate $G$ for this reaction at $-79\mathrm{.}6C.$

$G=$