Consider the following reaction at $298 \mathrm{~K} \cdot \frac{3}{2} \mathrm{O}_{2(g)} \rightleftharpoons \mathrm{O}_{3(g)} \cdot \mathrm{K}_{\mathrm{P}}=2.47 \times 10^{-29}$. $\Delta_r G^{\ominus}$ for the reaction is _________ $\mathrm{kJ}$. (Given $\mathrm{R}=8.314 \mathrm{~JK}^{-1} \mathrm{~mol}^{-1}$)