Question

what is collison theory in kinetics ​

Answer 1

The collision theory explains that gas-phase chemical reactions occur when molecules collide with sufficient kinetic energy. The collision theory is based on the kinetic theory of gases; therefore only dealing with gas-phase chemical reactions are dealt with. ... The molecules need to collide.

Answer 2

Chemical kinetics is the study of the rates of chemical reactions or how fast reactions occur. The primary requirement for a reaction to occur is that the reactant particles (atoms or molecules) must collide and interact with each other in some way. This is the central idea of the collision model, which is used to explain many of the observations made about chemical kinetics.

Collision theory states that the rate of a chemical reaction is proportional to the number of collisions between reactant molecules. The more often reactant molecules collide, the more often they react with one another, and the faster the reaction rate. In reality, only a small fraction of the collisions are effective collisions. Effective collisions are those that result in a chemical reaction.