Chemistry - Chemical Equilibrium Question with Solution | TestHub

At $298 \mathrm{K}$, the equilibrium constant is $2\times {10}^{15}$ for the reaction:

$\mathrm{Cu}\left(\mathrm{s}\right)+2{\mathrm{Ag}}^{+}\left(\mathrm{aq}\right)\rightleftharpoons {\mathrm{Cu}}^{2+}\left(\mathrm{aq}\right)+2\mathrm{Ag}\left(\mathrm{s}\right)$

The equilibrium constant for the reaction

$\frac{1}{2}{\mathrm{Cu}}^{2+}\left(\mathrm{aq}\right)+\mathrm{Ag}\left(\mathrm{s}\right)\rightleftharpoons \frac{1}{2}\mathrm{Cu}\left(\mathrm{s}\right)+{\mathrm{Ag}}^{+}\left(\mathrm{aq}\right)$ is $\mathrm{x}\times {10}^{-8}$. The value of $\mathrm{x}$ is ______. (Round off the answer to the nearest integer)