Question

Which of the following factors will not disturb the equilibrium state of the reaction, $N_2\left(g\right)+O_2\rightleftharpoons 2NO\left(g\right)$

• A. Change in pressure.
• B. Change in temperature.
• C. Addition of catalyst.
• D. Addition of $N_2$.

Answer 1

Answer: (A), (C)

The correct options are
A Change in pressure.
C Addition of catalyst.

In the equilibrium reaction, the number of moles of reactants and products is same. Hence, the equilibrium will not be affected by the change in pressure. Also this equilibrium will not be affected by the addition of catalyst as catalyst only accelerates the rate at which equilibrium is achieved. But it does not affect the magnitude of the equilibrium.