As the temperature of a reaction is increased, the rate of the reaction increases because a. reactant molecules collide less frequently and with greater energy per collision b. reactant molecules collide more frequently and with greater energy per collision c. reactant molecules collide less frequently d. activation energy is lowered e. reactant molecules collide more frequently with less energy per collision

b. reactant molecules collide more frequently and with greater energy per collision

Explanation:

As the temperature of a reaction is increased, the rate of the reaction increases because the reactant molecules collide more frequently and with greater energy per collision. When temperature is increased there is an increase in the kinetic energy of the molecules. The more the molecules move the more they collide. According to the collision theory there should be enough energy to allow bonds to be formed during a chemical reaction hence the need for greater energy per collision. Also the rate of reaction is directly proportional to the number of collisions that occur.

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