The vapour density of undecomposed N2O4 is 46. When heated, vapour density decreases to 24.5 due to its dissociation to NO2. The percent dissociation of N2O4 at the final temperature is: 

(a) 87                                         (b) 60

(c) 40                                         (d) 70

Concept Videos :-

#6 | Van't Hoff Factor & Abnormal Molecular Mass

Concept Questions :-

Van’t Hoff Factor
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