The rate constant and half - life of a first order reaction are related to each other as _____.

Options

A. `t_(1//2) = (0.693)/K`
B. `t_(1//2) = 0.693 K`
C. `K=0.693 t_(1//2)`
D. `Kt_(1//2) = 1/(0.693)`

Answer

A

Explanation

The half life of 1st order rate of reactions is given as `t_(1//2) = (0.693)/K`