Q. The time required for 100% completion of a zero order reaction is
A) $ak$
B) $\frac{a}{2k}$
C) $\frac{a}{k}$
D) $\frac{2k}{a}$
Explanation
(c)
For zero order reaction,
$\lbrack A\rbrack = - kt + \lbrack A\rbrack 0$
Where, [A]0= initial concentration=a
[A]=remaining concentration$= a - a = 0$
On putting value of $\lbrack A\rbrack_{0}$ and [A],we get
$t = \frac{a}{k}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.