Select and write the most appropriate answer from the given alternatives for each sub-question: The rate constant for a first order reaction is `100 S
Select and write the most appropriate answer from the given alternatives for each sub-question:
The rate constant for a first order reaction is `100 S^(-1)`. The time required for completion of 50% of reaction is :
A. 0.0693 millisecond
B. 0.693 millisecond
C. 6.93 millisecond
D. 69.3 millisecond
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Correct Answer - C
6.93 milliseconds
We known `t_(1//2)=0.693/k`
Here `k=100 s^(-1)`
`t_(1//2)=0.693/100=0.00693 s` or `6.93` millisecond.
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