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  • Identify the correct statement in respect of zero order reactionOption: 1 t½ is directly proportional to the initial concentration<b

Identify the correct statement in respect of zero order reaction

Option: 1

t½ is directly proportional to the initial concentration


Option: 2

Concentration of the reactant decreases linearly with time


Option: 3

Time taken for the completion of the reaction is twice its t½


Option: 4

All of the above.


Answers (1)

best_answer

For a zero order reaction,

t½ is given by Ao/2K where Ao is initial concentration.

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

A = Ao -Kt     where Ao is initial concentration and t is time elapsed

It decreases linearly with time.

For completion, A is taken as zero

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

Hence, time taken for completion of reaction is twice its t½.

 

 

Posted by

manish painkra

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