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Calculate the rate constant of a reactio...

Calculate the rate constant of a reaction (first order) which is 90% complete in 10 min.

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Rate constant.
`lambda=2.303/t(log)(100)/(100-90)=[2.303/10xx(log)100/10]min^-1= [2.303/10xx(log)10]min^-1`
.`=0.2303min^-1`
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