89.4 Determination of the reaction order 9.4.1 Integration methods--trial and error Comment: 1) It is a rather laborious method 2) For reaction without simple order, it is impossible to ascertain reaction order using this method 3)the experimental error may cause confusion sometimes1) It is a rather laborious method 2) For reaction without simple order, it is impossible to ascertain reaction order using this method. 3) the experimental error may cause confusion sometimes. Comment: 9.4.1 Integration methods—trial and error §9.4 Determination of the reaction order