If PCl5 is heated in two seperate vessels of volume 5 lit and 10 lit respectively at 27-C The extent of dissociation of PCl5 will be-

The correct option is B more in 10 lit vesselFor the reaction PCl_5⇔ nbsp;PCl_3 + Cl_2 , the forward reaction occurs with increase in the number of moles ...

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Byju's Answer

Standard XII

Chemistry

Addition of Inert Gas at Constant Pressure

If PCl5 is ...

Question

If $P C l_{5}$ is heated in two seperate vessels of volume 5 lit and 10 lit respectively at $27^{\circ} C$ The extent of dissociation of $P C l_{5}$ will be:

The correct option is B more in 10 lit vessel
For the reaction $P C l_{5} \Leftrightarrow P C l_{3} + C l_{2}$ , the forward reaction occurs with increase in the number of moles from 1 to 2. Also the reverse reaction occurs with decrease in the number of moles from 2 to 1. When the pressure of the system is increased, the backward reaction will be favoured as the reverse reaction occurs with decrease in the number of moles. Thus the dissociation of $P C l_{5}$ is suppressed. Hence, the degree of dissociation decreases. Pressure will be more in 5 L vessel than in 10 L vessel. Thus the extent of dissociation of $P C l_{5}$ will be more in 10 L vessel.

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If PCl5 is heated in two seperate vessels of volume 5 lit and 10 lit respectively at 27∘C The extent of dissociation of PCl5 will be:

If $P C l_{5}$ is heated in two seperate vessels of volume 5 lit and 10 lit respectively at $27^{\circ} C$ The extent of dissociation of $P C l_{5}$ will be: