Question

As the temperature increases, rate of reaction increases because:

• A. number of collisions between the molecules of reactants increases
• B. concentration of the reactants increases
• C. activation enerry is decreased
• D. none of the above

Answer 1

The correct option is A number of collisions between the molecules of reactants increases

According to the collision theory, gas phase reactions occur when gaseous reactant molecules collide with each other provided they have sufficient energy and have a proper orientation during collision.

Now, as the temperature increases, number of collisions between the molecules of reactants increases and thus the rate of reaction increases.