For the equilibrium,

$2\mathrm{NOCl}\left(\mathrm{g}\right) \rightleftharpoons 2\mathrm{NO}\left(\mathrm{g}\right)+ {\mathrm{Cl}}_2\left(\mathrm{g}\right)$  the value of the equilibrium constant, ${\mathrm{K}}_{\mathrm{C}}\text{ is }3.75\times {10}^{-6}\text{ at }1069 \mathrm{K}$ Calculate the ${\mathrm{K}}_{\mathrm{p}}$ for the reaction at this temperature.