For a first order reaction, the half-life period is

Options

A. dependednt on the square of the initial concentration
B. dependent on first power of initial concentration
C. dependent on the square root of initial concentration
D. indipendent on initial concentration

Answer

D

Explanation

`t_(1//2)=(1)/((a)^(n-1))`
where, n= order o reaction
= a initial concentration
For first order reaction,
`n=1`
`t_(1//2)=(1)/(a^(1-1))`
`a=(1)/(a^(0))=0`
thus, for a first order reaction, `t_(1//2)` is independent on intial concentration.