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At equilibrium of the reaction , N(2)O...

At equilibrium of the reaction ,
`N_(2)O_(4)(g) hArr 2NO_(2)(g)`
the observed molecular weight of `N_92)O_(4)` is 80g `mol^(-1)` at 350K. The percentage dissociation of `N_(2)O_(4)(g)` at 350K is

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Verified by Experts

The correct Answer is:
15
`alpha=(D-d)/((n-1)d)`
`alpha=((92)/(2)-40)/((2-1)40)=0.15`
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