Question

The half life of a first order reaction is 23 min. calculate velocity constant of the reaction

Answer 1

ALOHA...!!ʕ•ٹ•ʔ

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K = 0.693 ÷ t(half time period)
K = 0.693 ÷ 23
K = 0.03013 min-1

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Answer 2

The half life of a first order reaction is given by the equation,

t(1/2) = 0.693/k

Where “k” is the rate constant.

From the equation, we can calculate the rate constant.

23 = 0.693/k ✌✌✌✌

k = 0.693/23 = 0.0301 min^(-1)