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NTA Abhyas NEET2020ChemistryChemical KineticsPractice

Calculate the average life (in minutes), if the half-life of a radionuclide is 69.3 minutes.

Options

  1. A100
  2. B1 / 100
  3. C69.3 × 14.4
  4. D0.693 × 69.3

Correct answer

A. 100

Step-by-step solution

Average life ( τ ) = 1.44 t 1 / 2 = 1.44 × 69.3 = 99.7 ≈ 100 minutes.

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