A series of experiments was performed to find the reaction order of reaction A-2P. After performing the experiment under 100°C and 1 atm with 0.153 moles of pure A feed, the following results were recorded:
t (min) 2 5 10 20 30
V (dm3) 5 8.5 15 36 100
The experiment was then repeated after raising the pressure to 2 atm and with 0.306 moles of pure A feed. The results observed are given below:
t (min) 2 5 10 20 30
V (dm3) 6 12 32 200 1100
With the given information, using the derivative method, find the reaction order.