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प्रश्न
In a first order reaction x → y, 40% of the given sample of compound remains unreacted in 45 minutes. Calculate rate constant of the reaction.
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उत्तर
`k=2.303/tlog_10"[A]_@/[A]_t`
`k=2.303/tlog_10"100/40`
`k=2.303/45log_10"100/40`
`k=2.303/45log_10"2.5`
`k=2.303/45*0.3979`
`k=0.0204"min"^-1`
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