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If 10^(-4) dm^(3) of water is introduced...

If `10^(-4) dm^(3)` of water is introduced into a `1.0dm^(3)` flask at 300 K, how many moles of water are in the vapour phase when equilibrium is established?
(Given : Vapour pressure of `H_(2)O` at 300K is 3170 Pa, `R=8.314 JK^(-1) mol^(-1)`)

A

`1.27xx10^(-3)` mol

B

`5.56xx10^(-3)` mol

C

`1.53xx10_(-2)` mol

D

`4.46xx10^(-2)` mol

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The correct Answer is:
A
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