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Q.

A first order reaction has a rate constant of 0.0541s−1 at 25∘C What is the half-life for this reaction?

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a

0.0781 s

b

18.5 s

c

0.0375 s

answer is B.

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Detailed Solution

The half-life for this reaction,

t1/2=ln⁡20.0541 t1/2=12.8 sec

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