The half life period of gaseous substance undergoing thermal decomposition was measured for various initial pressure ‘P’ with the following result.
P(mm) 250 300 400 450
(min) 136 112.5 85 75.5
Calculate the order of reaction.
(A) where a is initial conc. or presuure or volume
from first & second data
n=2, Hence reaction is of second order.