Rater=k[A]0.04=k[A0]100.03=k[A]20
⇒[A]20[A0]10=0.030.04=34
Fromt=k2.303log[A]20[A]1010=k2.303log3410=k2.303(0.6020−0.4771)k=102.303×0.1249=2.876×10−2min−1
t1/2=k0.693=2.876×10−20.693=0.24×102min=24min.
The rate of first order reaction is 0.04molL−1s−1 at 10 minutes and 0.03molL−1s−1 at 20 minutes after initiation. Half life of the reaction is ______ minutes. (Given log2=0.3010,log3=0.4771)
Round off your answer to the nearest integer.
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