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NEET2011ChemistryChemical KineticsActual

The rate of reaction 2 ~N ₂ O ₅ 4 NO ₂+ O ₂ can be written in three ways aligned -d [ ~N ₂ O ₅ ] d t & =k [ ~N ₂ O ₅ ] d [ NO ₂ ] d t & =k^ [ N ₂ O ₅ ] d [ O ₂ ] d t & =k^ [ N ₂ O ₅ ] aligned The relationship between k and k^ and between k and k^ are

Options

  1. Ak^ =2 k ; k^ =k
  2. Bk^ =2 k ; k^ =k / 2
  3. Ck^ =2 k ; k^ =2 k
  4. Dk^ =k ; k^ =k

Correct answer

B. k^ =2 k ; k^ =k / 2

Step-by-step solution

aligned & Rate =- 1 2 d [ ~N ₂ O ₅ ] d t = 1 4 d [ NO ₂ ] d t = d [ O ₂ ] d t & 1 2 k [ ~N ₂ O ₅ ]= 1 4 k^ [ N ₂ O ₅ ]=k^ [ N ₂ O ₅ ] aligned array llrl & k 2 & = k^ 4 =k^ & & k^ & =2 k ; k^ = k 2 array

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