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Please help! When initial concentration of the reactant is doubled, the half-life period of a zero order reaction

When initial concentration of the reactant is doubled, the half-life period of a zero order reaction

  • Option 1)

    is tripled

  • Option 2)

    is doubled

  • Option 3)

    is halved

  • Option 4)

    remains unchanged

 
Answers (1)
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S subam

As we learnt that

Zero Order Reaction -

Zero order reaction means that the rate of the reaction is proportional to zeroth power of the concentration of reactants

 

- wherein

R\rightarrow P

Rate=\frac{-d(R)}{dt}=K[R]^{0}=K

t_\frac {1}{2}= time required for half completion of reaction=\frac{a}{2k}

 

 \left ( t_{\frac{1}{2}} \right )_{zero} = \frac{\left [ A \right ]_{o}}{2k}

\therefore If [A]o is doubled then t_{\frac{1}{2}} also doubled.

 


Option 1)

is tripled

This is incorrect.

Option 2)

is doubled

This is correct.

Option 3)

is halved

This is incorrect.

Option 4)

remains unchanged

This is incorrect.

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