Question

The half life of a first order reaction is 45 minutes. What is its rate constant?​

Answer 1

Answer:

A first order reaction is half - completed in 45 minutes. How long does it need for 99.9% of the reaction to be completed?

Top answer · 4 votes

t1/2 = 45 minutes For 1st order reaction t1/2 = 0.693k k = 0.69345min^-1 = 0.0154min^-1 Again for 1st order reaction we have k = 2.303tlog [ 100100 .

Explanation:

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