zero order differential
k = −d[A]/dt
zero order integrated
[A]t = -kt+[A]0
zero order half life
t1/2 = [A]0/2k
first order differential
k[A] = -d[A]/dt
first order integrated
ln[A]t = -kt+ln[A]0
half life first order
t1/2=.693/k
second order differential
k[A]2 = -d[A]/dt
second order inegrated
1/[A]t = kt+1/[A]0