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For the reaction, N 2 O 4 ( g ) ⇌ 2 N O 2 ( g ) ; if percentage dissociation of N 2 O 4 are 25%, 50%, 75% and 100, then the sequence of observed vapour densities will be

Options

  1. Ad 25 > d 50 > d 75 > d 100
  2. Bd 100 > d 75 > d 50 > d 25
  3. Cd 25 = d 50 = d 75 = d 100
  4. D( d 25 = d 50 ) > ( d 75 = d 100 )

Correct answer

A. d 25 > d 50 > d 75 > d 100

Step-by-step solution

Here the reaction, N 2 O 4 ( g ) ⇌ 2 N O 2 ( g ) ; As α = D - d ( n - 1 ) d (Here d = vapour density or density after dissociation) As percentage dissociation of d 25 > d 50 > d 75 > d 100

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