Q.

The half lives of two parallel path reaction are 5 hrs and 20 hrs respectively. The average half-life for the decay of A is

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answer is 4.

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Detailed Solution

Average half-life =1t=t1t2t1+t2=5×205+20=4
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The half lives of two parallel path reaction are 5 hrs and 20 hrs respectively. The average half-life for the decay of A is