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The vapour density of a maxture containi...

The vapour density of a maxture containing `NO_2 and N_2 O_4` is `27.6`. The mole fraction of `N_2 O_4` in the mixture is :

A

0.2

B

0.4

C

0.6

D

0.8

Text Solution

Verified by Experts

The correct Answer is:
D
`(V.D)_("mix")=X_(NO_(2)) cc"" (V.D.)_(NO_(2))+X_(N_(2)O_(4)) xx (V.D.)_(N_(2)O_(4))`
`27.6 =x xx 23+(1-x) xx 46` (x = mole fraction of `NO_(2)`)
`implies x = 0.8`
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