What is the molecularity of the elementary reaction?
SO_3(g)-->SO_2(g)+O(g)
assistance needed
Are you sure you're in college?
The directions for posting on this board clearly state that you should type your school subject on the School Subject line.
http://en.wikipedia.org/wiki/Molecularity
To determine the molecularity of an elementary reaction, we need to identify the number of reactant molecules participating in the reaction step. In this case, the given reaction is:
SO₃(g) → SO₂(g) + O(g)
From the reaction equation, we can see that there is only one reactant molecule, which is SO₃. Therefore, the molecularity of the elementary reaction is 1.