Many factors affect the products of chemical reactions. All reactions are affected differently when exposed to these agents. Temperature is just one of many factors that can change reactions. When exposed to a change in temperature, the activation energy of a reaction can be satisfied much more quickly (or slowly) than it would have been. As the temperature increases, the reaction rate increases. Temperature contributes very flexibly to the speed of reactions and chemical reactions in general. Temperature changes can affect almost every part of a reaction, such as the kinetic energy of molecules, the speed of enzymes, and how quickly the activation energy is satisfied. Although temperature changes many things in reactions, certain factors in reactions can change temperature. Kinetic energy is a measure of how fast molecules are moving at a given time. Kinetic energy can be affected by temperature change, as can many other parts of a reaction. The higher the temperature, the higher the kinetic energy. An increase in kinetic energy can affect the rate of an ongoing reaction by increasing the speed at which molecules move. Kinetic energy is also changed by air pressure, which temperature can also affect; the higher the pressure and temperature, the higher the kinetic energy and therefore the faster the reaction. Kinetic energy can also affect temperature; as the kinetic energy increases, the temperature also increases. This happens because chemical reactions can be endothermic or exothermic. When a reaction is endothermic, the kinetic energy becomes potential energy, meaning that heat is absorbed and temperature has an effect on the kinetic energy. On the other hand, when a reaction...... middle of paper ......ctions that have very low activation energies, this means that they occur very quickly or almost instantly. On the other hand, there are a multitude of reactions that have exceptionally high activation temperatures and these reactions take much longer to occur. With this in mind, it is important to remember that not all collisions cause a reaction. Millions of molecules collide every second, but not all of them react. Molecules must have achieved appropriate kinetic energy to break reactant bonds and create products. "When two billiard balls collide, they simply bounce off each other... In order to... trigger a reaction, the collisions must be energetic enough (kinetic energy) to cause this bond break." (boundless.com). The bonds of reactions can only be broken when molecules of certain kinetic energies collide.