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  • A substance, having initial concentration Ao, reacts according to zero order kinetics. The time it takes for the completion of the reaction is -  (Take rate constant as K)<div class='qna-o

A substance, having initial concentration Ao, reacts according to zero order kinetics. The time it takes for the completion of the reaction is -  (Take rate constant as K)

Option: 1

\mathrm{Ao/2K}


Option: 2

\mathrm{Ao/K }


Option: 3

\mathrm{K/Ao }


Option: 4

\mathrm{2K/Ao}


Answers (1)

best_answer

For a zero order reaction, concentration of reactant at any given time t,

\mathrm{A = Ao -Kt } where Ao is initial concentration and t is time elapsed

For completion, A is taken as zero

\mathrm{\begin{aligned} & \Rightarrow 0=\mathrm{Ao}-\mathrm{Kt} \\ & \Rightarrow \mathrm{t}=\mathrm{Ao} / \mathrm{K} \end{aligned} }.

 

Posted by

HARSH KANKARIA

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