Consider the rate below

R=K (L) ^2 (XY)

What is the overall order of the reactants in this reaction? 0 1 2 3

The Order of Reaction is defined as, "the sum of the exponents of the concentration terms in the rate expression of the reaction".

The rate expression given is,

Rate = k [L]² [XY]

So,

The sum of exponents is,

2 + 1 = 3

It is a third order reaction, provided it is second order with respect to concentration of L and first order with respect to concentration of XY.

Result:

It is 3rd Order Reaction.