1. Tardigrade
  2. Question
  3. Chemistry
  4. The rate constant of a first order reaction, where half-life is 8 min, is:

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Q. The rate constant of a first order reaction, where half-life is $8\, \min$, is:

J & K CETJ & K CET 2002

Solution:

For first order reaction $t_{1 / 2}=\frac{0.693}{k} 8=\frac{0.693}{k}$
$k=\frac{0.693}{8}=0.087\, \min ^{-1}$
$=1.44 \times 10^{-3} s^{-1}$