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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)

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.

Posted by

subam

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