If the half-life period of a first order reaction is $138.6 \ minutes$,then the value of the decay constant for the reaction will be:

  • A
    $5 \ minute^{-1}$
  • B
    $0.5 \ minute^{-1}$
  • C
    $0.05 \ minute^{-1}$
  • D
    $0.005 \ minute^{-1}$

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