50% of a zero order reaction completes in 50 minutes. 100% of the some reaction under similar conditions shall complete in

  • Option 1)

    50 min

  • Option 2)

    100 min

  • Option 3)

    200 min

  • Option 4)

    Infinite time

 

Answers (1)

As we learned in concept

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}

 

 Initial amount of reactant =a (lets say)

Then , after t_{\frac{1}{2}}, amount left =\frac{a}{2}

Rate = k= \frac{a}{2*50}= \frac{a}{100} 

So, amount a will be consumed in \frac{a}{k} time.

=\frac{a}{\frac{a}{100}}

=100 \: \: min

 


Option 1)

50 min

Incorrect option

Option 2)

100 min

Correct option

Option 3)

200 min

Incorrect option

Option 4)

Infinite time

Incorrect option

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