Why does increasing the temperature of the reactants increase the rate of a chemical reaction?

a. Heat energy causes some of the reactants to evaporate, increasing the concentration of the reactants

b. Heat energy helps to lower the amount of overall energy that is required for the reaction to occur

c. Heat energy causes the particles of the reactants to move faster, and therefore react with each other more frequently

d. Heat energy increases the size of the molecules of reactants, and therefore the molecules react more frequently

The statement in which increasing the temperature of the reactants increase the rate of a chemical reaction is "Heat energy helps to lower the amount of overall energy that is required for the reaction to occur."

What is a chemical reaction?

A chemical reaction occurs when two or more molecules meet at the appropriate angle and with enough force to produce a new product.

The kinetic energy of molecules involved in a chemical process is related to the temperature at which it takes place. When the temperature of the reaction is raised, a big number of molecules move faster, and a large part of the reacting molecules have kinetic energy greater than the actuation energy. As a result, a huge number of molecules will be able to exceed the minimal energy required for a successful collision, resulting in an increase in the rate of reaction.

Hence the correct option is B.

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