The concentration of R in the reaction R → P was measured as a function of time and the following data is obtained
| [R] (molar) | 1.0 | 0.75 | 0.40 | 0.10 |
| t (min) | 0.0 | 0.05 | 0.12 | 0.18 |
The order of the reaction is
first
second
third
zero
The order of the reaction is