Question

what is the initial effect of the change on vapour pressure?
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Answer 1

Answer:

(i) The initial effect on the vapour pressure of increasing the volume of the container will be that the vapour pressure is lowered. This is because the same amount of vapours now occupy large space. A decrease in pressure will shift the equilibrium in the forward direction.

Explanation:

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Answer 2

Decrease in pressure shift the equilibrium in the direction of high pressure i.e., more vapours are formed hence vapour pressure increases.

(ii) Rate of evaporation increases and rate of condensation decreases.

(iii) 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...

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