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MHT CET202416 May 2024Evening ShiftChemistryChemical KineticsActual

For the reaction, H _ 2( ~g ) + Br _ 2( ~g ) 2 HBr _ ( g ) , r = k [ H ₂ ] [ Br ₂ ]^ 1 2 What is the molecularity and order of reaction respectively?

Options

  1. AMonomolecular and 1 2
  2. BMonomolecular and 1
  3. CMonomolecular and 3 2
  4. DBimolecular and 3 2

Correct answer

D. Bimolecular and 3 2

Step-by-step solution

Molecularity = No of reactants =2 Order of reaction =1+ 1 2 = 3 2 Order of a reaction is an experimentally derived quantity and cannot be predicted from balanced equation. We can determine order from an equation only in case of an elementary reaction.

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