Question

Which of the following expressions best represents a second order rate law?

A. r =k
B. r =k[X]
C. r =k[X][Y]
D. r = k[X]x[Y]y

Answer 1

I think the correct answer would be C. The expression that would best represent a second order rate law would be r =k[X][Y]. Reaction with this rate law are those that depend on the concentration of two first order reactants or a second order reactant.