A reaction has a rate constant of $0.5\ {mol}^{- 1}\ {dm}^{3}\min^{- 1}.$ If initial concentration of the reactant is $0.2\ mol\ {dm}^{- 3},$ half-life of the reaction

Question

Dr. Abubacker · Accepted Answer

(b)
For $nth$ order reaction :
$t_{1/2} \propto \frac{1}{a^{n - 1}}$
For second order reaction
$t_{1/2} = \frac{1}{ka} = \frac{1}{0.5 	imes 0.2} = \frac{100}{10} = 10\ \min$

Q. A reaction has a rate constant of $0.5\ {mol}^{- 1}\ {dm}^{3}\min^{- 1}.$ If initial concentration of the reactant is $0.2\ mol\ {dm}^{- 3},$ half-life of the reaction

Explanation

Reviewed by Dr. Abubacker

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