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Manipal MET2012ChemistryChemical Equilibrium

The vapour density of N ₂ O ₄ at a certain temperature is 30 . What is the percentage dissociation of N ₂ O ₄ at this temperature?

Options

  1. A46 %
  2. B53 %
  3. C75 %
  4. D92 %

Correct answer

B. 53 %

Step-by-step solution

The reaction is N ₂ O ₄ 2 NO ₂ Molecular weight of N ₂ O ₄=2 14+4 16=92 Vapour density (D) of N ₂ O ₄ From, aligned & = molecular weight 2 & = 92 2 =46 & = D-d (n-1) d & = 46-30 (2-1) 30 = 16 30 & =0.533=53.3 % aligned

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