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NEST2014ChemistryChemical Kinetics

⁴¹ Ar is a radioisotope used to measure the flow of gases from smoke chimneys. A sample of ⁴¹ Ar decays initially at a rate of 32500 disintegrations/minute. The decay falls to 24500 disintegrations/minute after 75 min . The half-life of the isotope (in minute) is

Options

  1. A( 75 75 ) 2
  2. B( 75 0.75 ) 2
  3. C( -0.75 0.75 ) 2
  4. D( -75 0.75 ) 2

Correct answer

D. ( -75 0.75 ) 2

Step-by-step solution

No solution available.

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