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If the density of a mixture of O(2)&N(2)...

If the density of a mixture of `O_(2)&N_(2)` at N.T.P. is `1.258 g//l.` The partial volume of `O_(2)` in 3 mole of mixture is

A

`1L`

B

`2L`

C

`3L`

D

`4L`

Text Solution

Verified by Experts

The correct Answer is:
C
`M_(avg)=1.258xx22.4=32xx x_(1)+28xx(1-x_(1))`
`28.18=32x_(1)+28-28x_(1)`
`4x_(1)=0.18`
`x_(1)=0.045`
`V_(O_(2)) = 67.2xx0.045 = 3L`
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