Q. The half-life period for a first order reaction is 693 s. The rate constant of this reaction would be
A) $0.1\ s^{- 1}$
B) $0.01\ s^{- 1}$
C) $0.001\ s^{- 1}$
D) $0.0001\ s^{- 1}$
Explanation
(c)
$k = \frac{0.693}{t_{1/2}} = \frac{0.693}{693} = 0.001\ s^{- 1}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.