# What Is Effective Collision?

Effective collisions are those that result in a chemical reaction. Effective collisions are those that result in product formation due to an increase in the rate of a chemical reaction that occurs when the two reactant molecules are correctly orientated and have attained the threshold value at the time of the collision. In order to produce an effective collision, reactant particles must possess some minimum amount of energy.

Note:;In order to produce an effective collision, reactant particles must possess some minimum amount of energy.The energy, used to initiate the reaction, is called the activation energy.