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How many of water are in vapour phase pr...

How many of water are in vapour phase present inside the vessel containing `1L` water after sufficient time? (Vapour pressure of water at `27^(@)C=3000Pa,R=(25)/(3)J//mol-K`)

A

`5xx10^(-4)`

B

`120`

C

`1.2xx10^(-3)`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
A
`n=(PV)/(RT)=(3000xx10^(-3))/((25)/(3)xx300)=1.2xx10^(-3)` moles.
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