The equilibrium\ $\mathrm{CaCO}_{3(\mathrm{~s})} \underset{\Delta}{ ightleftharpoons} \mathrm{CaO}

Question

The equilibrium\ $\mathrm{CaCO}_{3(\mathrm{~s})} \underset{\Delta}{ightleftharpoons} \mathrm{CaO}_{(\mathrm{s})}+\mathrm{CO}_{2(\mathrm{~g})}$ is studied in a closed container . What would be the effect of adding more $\mathrm{CaCO}_{3(\mathrm{~s})}$ to this system at equilibrium ?\

Professor PC Thomas Classes · Answer

Active mass of a pure solid is constant, (equal to 1) and so addition of more calcium carbonate does not affect the equilibrium . Concentration of $\mathrm{CO}_{2}$ remains unchanged. .\