Question

The units of rate constant of n^th order is ___________

(a) time^-1

(b) concentration^(n-1)

(c) time^-1 concentration^(1-n)

(d) time^-1 concentration^(n-1)

I had been asked this question in an interview for internship.

This is a very interesting question from Reaction Order and Elementary Rate Law topic in section Rate Laws and Stoichiometry of Chemical Reaction Engineering

Answer 1

Right option is (c) time^-1 concentration^(1-n)

To explain I would say: General expression for the rate constant is time^-1 concentration^(1-n).