Question

The rate of reaction increases with rise in temperature because of :

• A. increase in the number of activated molecules
• B. increase in the activation energy
• C. decrease in the activation energy
• D. increase in the number of molecular collisions

Answer 1

The correct option is C decrease in the activation energy

As the temperature is increased, the molecules acquire speed and start moving at a faster rate.

This increases the number of collisions between the molecules, thus decreasing the activation energy and increasing the rate of the reaction.

Therefore, the option is C.