Chemistry - Chemical Kinetics Question with Solution | TestHub

Nuclear reactions are I^storder reaction

$\frac{\mathrm{N}}{{\mathrm{N}}_0}={\left(\frac{1}{2}\right)}^{\mathrm{n}}$

$\Rightarrow \frac{0.125}{1}={\left(\frac{1}{2}\right)}^n$

$=\frac{1}{8}=\frac{1}{2^n}$

$\Rightarrow n=3$

$\mathrm{n}=\frac{\mathrm{t}}{{\mathrm{t}}_{\frac{1}{2}}}$;

$\because 3=\frac{t}{1600}$

$t=4800$