The medical dictionary on eMedicineHealth is organized with a list of medical terms under each letter. By clicking on a letter, you will jump to the list of words. There, you can browse down the terms to find the word you are looking for.
When a catalyst is involved in the collision between the reactant molecules, less energy is required for the chemical change to take place, and hence more collisions have sufficient energy for reaction to occur. The reaction rate therefore increases.Collision theory is closely related to chemical kinetics.hen a catalyst is involved in the collision between the reactant molecules, less energy is required for the chemical change to take place, and hence more collisions have sufficient energy for reaction to occur. The reaction rate therefore increases. Collision theory is closely related to chemical kinetics.
Reactions occur all the time. However, certain prequisites must be fulfiled before a reaction can occur. You cannot say, expect a reaction to occur between one substance and another if you keep both of them separated. Therefore, one theory that discusses how reactions occur is The collision theory. In the collision theory, for the reaction to occur reactants involved together must: Collide with the right orientation. Collide with sufficient energy.