Chemical Kinetics

Question
CBSEENCH12010423

The thermal decomposition of HCO2H is a first-order reaction with a rate constant of 2.4 x 10-3 s-1 at a certain temperature. Calculate how long will it take for three-fourths of the initial quantity of HCO2H to decompose.

(log 0.25 = - 0.6021)

Solution

Given k = 2.4 x 10-3 s-1

According to the first order rate law,
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