What is the value of decay constant of a...

What is the value of decay constant of a compound having half life time of 2.95 days?

A

`2.7 xx 10^(-5) s^(-1)`

B

`2.7 xx 10^(6) s^(-1)`

C

`2.7 xx 10^(-6) s^(-1)`

D

`3xx10^(5) s^(-1)`

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The correct Answer is:

C

`t_(1//2) = 2.95 ` days
`= 2.95 xx 24xx60xx60s = 254880`
`lambda = (0.693)/(t_(1//2)) = (0.693)/(254880) = 2.7 xx 10^(-6) s^(-1)`

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