4: A plot between ln[R] and t
for a first order reaction
Fig 3 5: Plot of log [R]0/[R] vs time for a
first order reaction
Slope =
/2 303
k
log ([R /[R])
0]
Time
0
226
4
222
88
2
86
Ra
He
Rn


Rate = k [Ra]
Decomposition of  N2O5  and N2O are some more examples of first
order reactions