19, A substance'A' decomposes by a first order reaction startinginitia – InterviewSolution

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19, A substance'A' decomposes by a first order reaction startinginitially with [A]- 2.00 M and after 200 min, [A] becomes 30.15 M. For this reaction f2 is1/2

Answer»

rate of reaction K = 1/200*ln(2/0.15) = ln(4/3)/200

also T½ = ln2/k = 200*ln2/(ln(4/3) = 200*0.69/0.28 = 492.8 min.

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