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JIPMER2012ChemistryChemical Kinetics

For a zero order reaction

Options

  1. At_ 1 / 2 R₀
  2. Bt_ 1 / 2 1 / R₀
  3. Ct_ 1 / 2 R₀^2
  4. Dt_ 1 / 2 1 / R₀^2

Correct answer

A. t_ 1 / 2 R₀

Step-by-step solution

For a zero order reaction rate, - d[R] d t =k On integrating, we get [R]=-k t+[C] When t=0,[R]= [R₀ ] [C]= [R₀ ] [R]=-k t+ [R₀ ] When, t=t_ 1 / 2 ,[R]= [R₀ ] 2 [R₀ ] 2 - [R₀ ]=-k t_ 1 / 2 t_ 1 / 2 = [R₀ ] 2 k t_ 1 / 2 [R₀ ]

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