CHEM 102 Lecture Notes - Lecture 17: Svante Arrhenius, Arrhenius Equation, Elementary Reaction
Document Summary
Chem 102: general descriptive chemistry ii - lecture 17: reaction mechanisms (3/19/15) In a chemical reaction, bonds are broken and new bonds are formed: molecules only react if they collide with each other, must collide with enough energy. Takes a lot of energy to break and re-form bonds: must collide with the correct orientation. Activation energy: activation energy: the minimum amount of energy required for reaction (ea, need sufficient energy to get over activation energy barrier. Reaction coordinate diagrams: purpose: to visualize energy changes, ea = energy of activation complex energy of reactants, e = energy of reactants energy of products or energy of products energy of reactants. Reaction mechanisms: sequence of events that describes the actual process by which reactants become products, reactions can occur all at once or through several discrete steps, more than 1 step = multi-step reaction.
