Question Detail

CHM 101 CHM 101 Past Questions Objective Question

Question

For the elementary reaction 2NO₂ → N₂O₄, the order of the reaction is:
Options
A 0
B 1
C 2
Correct Answer
D 3
Correct Answer

Option C is the correct answer.

Detailed Explanation

For an elementary reaction, the order is equal to the molecularity. Since the reaction involves two molecules of NO₂, it is a bimolecular elementary step and is second order overall.

Hint

The rate law for an elementary step can be written directly from its stoichiometry.

Question Info