Solution :-
Given data :-
Rate constant k = 0.538 /s
initial concentration A0 = 0.867 mol/L
Formula for the first order half-life reaction :-
k = 0.693 / t 1/2
t 1/2 = 0.693/0.538
half -life of reaction t 1/2 = 1.29 s
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For a first-order reaction, the half-life is constant. It depends only on the rate constant k k and not on the reactant concentration. It is expressed as t1/2=0.693k t 1 / 2 = 0.693 k For a second-order reaction, the half-life depends on the rate constant and the concentration of the reactant and so is expressed as t1/2=1k[A]0. A certain first-order reaction (A→products A → p r o d u c t s ) has a rate constant of 9.30×10−3...
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