http://www.ck12.org Chapter 18. Kinetics
FIGURE 18.2
Activation energy for an exothermic reac-
tion.FIGURE 18.3
Formation of activated complex with subsequent release of products.initial input of energy.
Factors Affecting Reaction Rate
Several factors influence the rate at which a reaction proceeds. Many of these effects can be predicted and rational-
ized using the basic concepts of collision theory.
Concentration
FIGURE 18.4
Collision theory tells us that molecules need to collide in order for a reaction to take place. All else being equal,
anything that increases the frequency of collisions would also increase the rate of reaction. One way to do this is
to increase the concentrations of one or more of the reactants. Using a real world example, a busy freeway will