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For a first order reaction, it takes 16 ...

For a first order reaction, it takes 16 min to complete 50% reaction. How much time does it take to complete 75% reaction?

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`K=0.693/t_(0.5)=0.693/16=0.0433min^-1`
Time required to complete` 75%`reaction,
`t_(0.75)=2.303/K"log"100/(100-75)=2.303/0.0433"log"100/25=53.187xx0.06021=32`minutes.
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