Question

The rate constant (K) for a first order reaction was found to be 0.2 sec. What will be its half-life?
(a) 10 seconds
5) 5 seconds
(c) 2.5 seconds
(d) 15 seconds​​

Answer 1

Answer:

mere channel ko susribe kar do

Answer 2

Answer:

half life for first order reaction is t =

Explanation:

0.693/k

t = 0.2 sec

t1/2 = 0.693 / k

0.2 = 0.693/k

k = 0.693/0.2

= 6930/2000

k = 3.4 s