Posted: Sat Mar 03, 2018 2:49 pm
How does the collision model and the activated complex model account for the temperature dependence of reactions ?
Re: Learning Models [ENDORSED]
Posted: Sat Mar 03, 2018 3:30 pm
I found these explanations online which helped me understand this better:
According to the collision model, a chemical reaction can occur only when the reactant molecules, atoms, or ions collide with more than a certain amount of kinetic energy (i.e. temperature) and in the proper orientation. The collision model explains why, for example, most collisions between molecules do not result in a chemical reaction.
Activated complex is an intermediate structure formed in the conversion of reactants to products. The activated complex is the structure at the maximum energy point (which has to do with temperature) along the reaction path; the activation energy is the difference between the energies of the activated complex and the reactants.