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Raoult's Law

If saturated ...

Question

If saturated vapours are compressed slowly (temperature remains constant) to half the initial volume, their pressure will:

A

become four times

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B

become double

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C

remain unchanged

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D

become half

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Solution

The correct option is C remain unchanged
When saturated vapour is compressed it's composition (liq-vapour)changes which make sure that pressure remains constant. Saturated Vapour doesn't obey ideal gas law.

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