Half-life `(t_(1))` of the first order reaction and half-life `(t_(2))` of the second order reaction are equal. Hence ratio of the rate at the start of the start of the reaction:

Half life ( t_1 ) of the first order reaction and half life ( t_2 ) of the 2 ""^(nd) order reaction are equal. If initial concentration of reactants in both reaction are same then ratio of the initial rate of the reaction

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

Half life of a first order reaction and a zero order reaction are same. Then the ratio of the initial rate of the first order reaction to that of zero order reaction is

For a second order reaction, half-life concentration of reactants:

For first order reaction, the half life is dependent of :

The half-life period for a zero order reaction is equal to