## Second order reaction

$aR \to bP, Rate = -\frac{1}{a} \frac{d[R]}{dt} = \frac{1}{b}\frac{d[P]}{dt}$

Rafsan Rana 1A
Posts: 55
Joined: Sat Aug 24, 2019 12:16 am

### Second order reaction

What is relationship between the half life of the second order reaction and the concentration of the reactant?

Kevin Xu 4F
Posts: 50
Joined: Fri Aug 09, 2019 12:16 am

### Re: Second order reaction

The equation for the half life of a second order reaction is t(1/2) = 1/ (k* [A]). Thus, this equation shows us that the concentration of A is inversely related to the half life, if the initial concentration of A increases, then the half life decreases. If the initial concentration of A decreases, then the half life increases.