Question

Why does the rate of the reaction decrease over time? Why does the rate of the reaction decrease over time? Exothermic reactions lose heat which cools the reaction which decreases reaction rate. Not all molecules will react and some choose to stay in their present form. As the reaction proceeds, a decrease in the concentration of reactants results in fewer successful collisions. As the reaction proceeds, the concentration of the products results in fewer collisions. none of the above

Answer 1

Answer: The rate of the reaction decrease over time as the reaction proceeds, a decrease in the concentration of reactants results in fewer successful collisions.  

Explanation:

Rate of a reaction is defined as the change in concentration of products and reactants with respect to time.

The rate of a reaction decreases with times because reactants are converting into products.

As a result, the reaction is proceeding with a decrease in the concentration of reactants due to which less number of collisions between the reactant molecules will be there.

Hence, rate of reaction will decrease.

Thus, we can conclude that the rate of the reaction decrease over time as the reaction proceeds, a decrease in the concentration of reactants results in fewer successful collisions.