Chemistry - Chemical Equilibrium Question with Solution | TestHub

Two solids dissociate as follows:

$\mathrm{A} \left(\mathrm{s}\right)\rightleftharpoons \mathrm{B} \left(\mathrm{g}\right)+\mathrm{C} \left(\mathrm{g}\right);{\mathrm{K}}_{{\mathrm{P}}_1}=\mathrm{x}{\mathrm{atm}}^2$

$\mathrm{D} \left(\mathrm{s}\right)\rightleftharpoons \mathrm{C} \left(\mathrm{g}\right)+\mathrm{E} \left(\mathrm{g}\right);{\mathrm{K}}_{{\mathrm{P}}_2}=\mathrm{y}{\mathrm{atm}}^2$

The total pressure when both the solids dissociate simultaneously is: