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If the rate law is -(d[A])/(dt) =k[A] ...

If the rate law is `-(d[A])/(dt) =k[A]`

State I, at t = 0 state II, after 12 min What is half-life period ?

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as `2t_(1//2) =12" m in "therefore t_(1//2) =6` m in.
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