Introduction The rate of a chemical reaction means how fast a reaction is proceeding. It can also be defined as how fast a product is formed or how fast a reactant is consumed. The collision of atoms and molecules is necessary to bring about a chemical change. The reactant molecules and atoms must collide with each other to bring a chemical reaction. But all the collisions made by reactant species will result in product formation. Effective collision is necessary to make a reaction to proceed. And an effective collision means that the species that are colliding need some minimum internal ... Read More