Three groups of drugs are used to reduce the stickiness of platelets, thus preventing platelets from clumping together to form platelet plugs. The anti-platelet drugs are most effective in preventing abnormal blood clots from forming in arteries (as opposed to veins). Aspirin and dipyridamoleâ (Aggrenox).
In order to react, colliding molecules must have a total kinetic energy equal to or greater than some minimum value [Figure 14.13(b)]. The minimum energy required to initiate a chemical reaction is called the activation energy, Ea. The value of Ea varies from reaction to reaction.
2015-07-30T10:29:27-04:00. 1  Activation energy is the minimum amount of energy required to start a reaction. 2  Is the minimum quantity of energy that the reacting species must possess in order to undergo specified reaction. 1  Comments. 2  Report.