Question
What do you understand by the ‘order of a reaction’? Identify the reaction order from each of the following units of reaction rate constant:
(i) L-1 mol-1
(ii) L mol-1 s-1
Solution
The sum of the powers of the concentrations of the reactants of a chemical reaction in the rate law expression is called the order of that chemical reaction.
Rate = k [A]x [B]y
Order of reaction = x + y
The orders of reaction for the following units are:
(i) L-1 mol s-1: Zero order
(ii) L mol-1s-1: Second order
