If 50 % of a reaction occurs in 100 second and 75 % of the reaction occurs in 200 second, the order of this reaction is:

Step-by-step solution

50% of a reaction occurs in 100 second and 75% of the reaction occurs in 200 second, the order of this reaction is 1. Let the initial reactant concentration is 1 M. In the first 100 seconds, reactant concentration is reduced to 50 %   or   1 × 50 100 ​ = 0 . 5   M . In the second 100 seconds (total 200 seconds from start), reactant concentration is reduced to 100 − 75 = 25 %   or     1 ×   25 100 ​   = 0 . 25   M . . Thus, we observe that afte