| = =>LEAST COMPLEX |
| |
| *CHEMICAL RATE LIMITED |
| (1) Simple Kinetic Theory of bimolecular reactions: reaction rate coefficient equals the collision frequency. |
| |
| (2) Modified Kinetic Theory: reaction rate coefficient equals, |
| collision frequency x activation energy factor x steric factor |
| |
| (3) a. Transition State Theory (TST): unimolecular/bimolecular reactions |
Rate coefficient includes an activation energy factor, and an entropy factor to
account for steric effect. |
| b. Lindemann theory of unimolecular reactions. |
| |
| |
| *ENERGY TRANSFER LIMITED. |
| |
| Quantum mechanical treatment of thermal activation, and |
| unimolecular/bimolecular chemical activation. Rate coefficients depend on the Internal energy of molecular species. |
| |
| = =>MOST COMPLEX |