A liquid is in equilibrium with its vapour in a sealed container at a fixed temperature. The volume of the container is suddenly increased. What happens when equilibrium is restored finally and what will be the final vapour pressure ?

A liquid is in equilibrium with its vapour in a sealed container at a

1.	A liquid is in equilibrium with its vapour in a sealed container at a fixed temperature. The volume of the container is suddenly increased. What happens when equilibrium is restored finally and what will be the final vapour pressure ?
Answer» Solution :`underset("Low pressure")(A_((l)))tounderset("HIGH pressure")(A_((g))` If volume is increased at constant temperature, pressure decreases, since, `p prop 1//V` at constant temperature. When EQUILIBRIUM is RESTORED finally the rate of EVAPORATION again becomes equal to the rate of condensation and the final vapour pressure becomes equal to the vapour pressure that was before the sudden INCREASE in the volume of the container.