The time required for 100% completion of a zero order reaction is

Options

A. `(2k)/(a)`
B. `(a)/(2k)`
C. `(a)/(k)`
D. ak

Answer

C

Explanation

The concentration of reactant decreases lineary with time.
`[A]_(t)=[A]_(0)=kt`
The time required for the zero order reaction to be complete i.e., time at which `[A]_(t)` is zero i.e., `t_("completion")=[A]_(0)//k` or `a//k` if `[A]_(0)=a`.