Collision Model
- Collision Model: the energy (for breaking bonds of reactants) comes from the kinetic energies possessed by the reacting molecules before the collision
- Key idea: the rate of a reaction depends on the number of successful collisions and these collisions provide the energy for molecules to react and form products
- In order for a reaction to occur and products to be made
- Reactant molecules must collide
- Must collide with enough energy
- Must make contact at correct molecular orientation that allow the bonds to rearrange in the required manner
- Only a small fraction of collisions produce a reaction bcuz…
- The collision energy must equal or exceed the activation energy
- Reactants must collide at a correct molecular orientation
- Is why the observed rate of reaction is less than the number of collisions that have the minimum energy