## Not used Half life

$\frac{d[R]}{dt}=-k; [R]=-kt + [R]_{0}; t_{\frac{1}{2}}=\frac{[R]_{0}}{2k}$

VivianaHF2L
Posts: 29
Joined: Fri Sep 28, 2018 12:20 am

### Not used Half life

In the 6th edition textbook, there is a table that describes all three orders but on the bottom of zero and second order the half life states not used. What does this mean?

Parth Mungra
Posts: 72
Joined: Fri Sep 28, 2018 12:28 am

### Re: Not used Half life

For zero order, there is no half life due to the integrated rate law not having concentration