1.碰撞理论1918年,Lewis运用分子运动论的成果,提出了反应速率的碰撞理论。该理论认为,反应物分子的相互碰撞是反应进行的必要条件,反应物分子碰撞频率越高,反应速率越快。但并不是每次碰撞都能引起反应,能引起反应的碰撞是少数,称为有效碰撞。有效碰撞的条件是:(1)互相碰撞的反应物分子应有合适的碰撞取向,取向合适才能发生反应。(2)互相碰撞的分子必须有足够的能量。只 1. Collision Theory In 1918, Lewis applied the theory of molecular motion theory to propose the collision rate theory. The theory holds that the collision of reactant molecules is a necessary condition for the reaction. The higher the collision frequency of reactant molecules, the faster the reaction rate. But not every collision can cause a reaction, the reaction can cause a small number of collisions, known as the effective collision. Effective collision conditions are: (1) collide with each other reactants molecules should have the appropriate collision orientation, orientation appropriate to react. (2) The molecules that collide with each other must have enough energy. only