Which of the followoing expression is correct for first order reaction ? `(CO)` refers to initial concentration of reactant.

Options

A. `t_(1//2) prop CO`
B. `t_(1//2) prop CO^(-1)`
C. `t_(1//2) prop CO^(-2)`
D. `t_(1//2) prop CO^(0)`

Answer

D

Explanation

`t_(1//2) prop (CO)^(@)` i.e. half life for `I^(st)` order is independent of initial concentration.