For the reaction ${\mathrm{CaCO}}_3\left(\mathrm{s}\right)\rightleftharpoons \mathrm{CaO}\left(\mathrm{s}\right)+{\mathrm{CO}}_2\left(\mathrm{g}\right)$ the pressure of ${\mathrm{CO}}_2\left(\mathrm{g}\right)$ will depend upon

For the given reaction the pressure of carbon di oxide will depend upon the temperature of the system.

The given balanced equation is,

${\mathrm{CaCO}}_3\leftrightharpoons \mathrm{CaO}\left(\mathrm{s}\right)+{\mathrm{CO}}_2\left(\mathrm{g}\right)$

The pressure of the gas is only depending upon the equilibrium constant while the equilibrium constant is only depending upon the temperature.

The system's temperature will affect the carbon dioxide pressure for the specified reaction.

Hence the correct option is D.