Q48 / 196 · NTA Abhyas (NEET) 2020 · Chemistry · Chemical Kinetics

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

Correct answer
A
$100$
B
$1 / 100$
C
$69.3 \times 14.4$
D
$0.693 \times 69.3$

Solution

Average life

(τ) = 1.44 t_{1 / 2} = 1.44 \times 69.3 = 99.7 \approx 100

minutes.

Hence, the correct answer is option: 'A'.

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