The species as H and Br. formed in one step and consumed in a subsequent step and never seen as a product is called an intermediate 中间体 The reaction that completes in one act is called elementary reaction 基元反应(步骤)
The species as H and Br, formed in one step and consumed in a subsequent step and never seen as a product is called an intermediate. The reaction that completes in one act is called elementary reaction. 基元反应(步骤) 中间体
The sum of the elementary reactions and their series is called the mechanism of the overall reaction 反应机理 总包反应
The sum of the elementary reactions and their series is called the mechanism of the overall reaction 总包反应 反应机理
Classification of reactions D)elementary reactions According to the number of molecules involved in the reaction, elementary reactions can be divided into three kinds unimolecular reaction单分子反应 bimolecular reaction双分子反应 termolecular reaction.三分子反应
Classification of reactions 1) elementary reactions According to the number of molecules involved in the reaction, elementary reactions can be divided into three kinds: unimolecular reaction bimolecular reaction termolecular reaction. 单分子反应 双分子反应 三分子反应
unimolecular reaction =2I bimolecular reaction Br+H2=HBr+ H termolecular reaction 2I+H=2HI
unimolecular reaction: I2 = 2I bimolecular reaction: Br + H2 = HBr + H termolecular reaction: 2I + H2 = 2HI
Because the probability of three molecules colliding simultaneously is very small. termolecular reaction are quite rare. 三体碰撞的 几率很小
Because the probability of three molecules colliding simultaneously is very small, termolecular reaction are quite rare. 三体碰撞的 几率很小