Question

The rate constant for a first order reaction which has half life 480 s is :-
(1) 1.44 x 10-35-1 (2) 1.44 xs
(3) 0.72 x 10-3 s
(4) 2.88 x 10-3​

Answer 1

Answer:

The answer is 1.44* 10^-3

Explanation:

as the half life of first order rxn..is independent of the quantity of reactant taken , therefore

Half life = 0.693 / k

480 = 0.693 / k

k = 1.44 * 10^-3