Question

collision theory for unimolecular reaction

Answer 1

Collison Theory for unimolecular reaction is too lengthy so, I can give you short hint if you are class 12th student, read chapter 04.

otherwise,
the number of molecules or ions that participate in the rate determining step. A mechanism in which two reacting species combine in the transition state of the rate-determining step is called bimolecular.


now you can take idea !