Question

For the reaction, $CO\left(g\right)+H_{2}O\left(g\right)\rightleftharpoons C{O}_2\left(g\right)+H_2\left(g\right)$ at a given temperature, the equilibrium amount of product can be increased by :

• A. Adding a suitable catalyst
• B. Adding an inert gas
• C. Decreasing the volume of the container
• D. Increasing the amount of CO(g)

Answer 1

The correct option is D Increasing the amount of CO(g)

Since the given equilibrium involves $\Delta n_g=0$, there will be no effect of adding an inert gas or decreasing the volume of the container. A catalyst can help in achieving the equilibrium rapidly without affecting the equilibrium amounts of the species involved in the reaction.

Only increasing the amount of a reactant can increase the equilibrium amount of the product.