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For a first order reaction , nAtoB whose concentration vs time curve is as shown in the figure. If half -life for this reaction is 24 minutes. Find out the value of n .

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Solution :At t=48 min, [A]=[B]
Also, `[A]=([A]_0)/4=[B]`
`underset([A]_0-nx)(nA)toundersetx(B)`
`X=([A]_0)/4implies [A]_0-n([A]_0)/4=([A]_0)/4 implies n=3`


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