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JIPMER2019ChemistryChemical Kinetics

Formula for half- life of a zero order reaction is

Options

  1. AC₀ K
  2. BC₀ 2 K
  3. C2 C₀ K
  4. D2 C₀ 2 K

Correct answer

B. C₀ 2 K

Step-by-step solution

For zero order reaction, if concentration of reactant is [ C ₀ ] at time t and [ C ₀ ] 2 at time t ₂ , then aligned & k = [ C ₀ ]- [ C ₀ 2 ] t ₂- t ₁ = [ C ₀ ]- [ C ₀ 2 ] t _ 1 / 2 & t _ 1 / 2 = [ C ₀ ] 2 k aligned Thus, t _ 1 / 2 for zero order reaction is directly proportional to the initial concentration of the reactant.

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