Question

For the reaction, $PC{l}_5\left(g\right)\rightleftharpoons PC{l}_3\left(g\right)+C{l}_2\left(g\right)$ the forward reaction at constant temperature is favoured by

• A. introducing an inert gas at constant volume
• B. introducing an inert gas at constant pressure
• C. increasing the volume of the container
• D. introducing $PC{l}_5$ at constant volume

Answer 1

Answer: (B), (C), (D)

The correct options are
B introducing an inert gas at constant pressure
C increasing the volume of the container
D introducing $PC{l}_5$ at constant volume

If inert gas is introduced at constant pressure, volume of container will have to be increased and this will favour the forward reaction. Also adding $PC{l}_5\left(g\right)$ at constant volume will favour forward reaction because $PC{l}_5\left(g\right)$ is a reactant.