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  3. Chemistry
  4. The half-life for a zero order reaction having 0.02 M initial concentration of reactant is 100 s. The rate constant (in mol L-1 s-1) for the reaction is

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Q. The half-life for a zero order reaction having $0.02\, M$ initial concentration of reactant is $100\, s$. The rate constant (in $mol \,L^{-1} s^{-1})$ for the reaction is

NEETNEET 2020Chemical Kinetics

Solution:

$(t_{1/2})_{\text{zero}}=\frac{[A]_{0}}{2K}$
$100S=\frac{0.02M}{2K}$
$K=\frac{0.02M}{2 \times 100}$
$=1 \times 10^{-4}mol\,L^{-1}\,s^{-1}$