For the reaction
`CO(g)+H_(2)O(g) hArr CO_(2)(g)+H_(2)(g)`
at a given temperature, the equilibrium amount of `CO_(2)(g)` can be increased by

Options

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

D

Explanation

Since the given equilibrium involves `Deltan_(g)=0`, there will be no effect of adding an inert gas and decreasing the volume of the container. A catalyst can help in achieving the equilibrium rapidly without affecting the equilibrium amount of the species involved in the reaction.
Only increasing the amount of a reactant can shift the equilibrium amount of a product.