Chemistry, asked by basavaraj7268, 11 months ago

A first order reaction is 40% completed in 10 minutes.calculate the rate constant of the reaction.

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Answered by DeathViperLP02

this question came this year in boarda....

k=(1/t)log a/b b=40/100*a....

calculate k

Answered by shivi14151

40%complete means if we consider c* is 100 then ct is 60 and formula for 1st order rexn is k=2.303/t log 100/60

basavaraj7268: explain ans plz

shivi14151: Q's main mentioned hai ki 40 % complete ho chuki hai reaction means if we considered that intial concentration is 100 then final is 60 log 100/60 ki value agar solve karoge toh log10-log6 where log6 is .77 and log 10 is 1 you got .23 value put kardo log 100/60 ki jagah ok i now you understand

shivi14151: plzz mark it is a brainlist ans

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A first order reaction is 40% completed in 10 minutes.calculate the rate constant of the reaction.​

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A first order reaction is 40% completed in 10 minutes.calculate the rate constant of the reaction.