Question

In a gaseous reaction, $2A\leftrightharpoons 3B$ on doubling the volume of container, the equilibrium amount of the product:

• A. increases
• B. decreases
• C. remains same
• D. data insufficient

Answer 1

The correct option is A increases

For the gaseous reaction $2A\leftrightharpoons 3B$, when the volume of the container is doubled, the total pressure is reduced to half.

The forward reaction occurs with an increase in the number of moles from $2$ to $3$ and the reverse reaction occurs with a decrease in the number of moles from $3$ to $2$.

To nullify the effect of reduced pressure, the equilibrium will shift towards the right so that the number of moles and total pressure increases.

Hence, the equilibrium amount of the product increases.