Question

How does an increase in temperature affect the rate of reaction?

a) Increases the activation energy
b) Decreases the number of collisions
c) Decreases the reaction rate
d) Increases the reaction rate

Answer 1

Increasing the temperature of a reaction results in a higher reaction rate as it increases the frequency of collisions and the force at which they occur.

Step-by-step explanation:

Raising the temperature of a chemical reaction results in a higher reaction rate.

When the reactant particles are heated, they move faster and faster, resulting in a greater frequency of collisions.

An even more important effect of the temperature increase is that the collisions occur with a greater force, which means the reactants are more likely to surmount the activation energy barrier and go on to form products.

Increasing the temperature of a reaction increases not only the frequency of collisions, but also the percentage of those collisions that are effective, resulting in an increased reaction rate.