Question

Why are reactions with higher activation energy more sensitive to temperature?

Answer 1

Answer:Enzymes lower activation energy, and thus increase the rate constant and the speed of the reaction. However, increasing the temperature can also increase the rate of the reaction

Answer 2

Answer:

The minimum energy needed for a reaction to proceed, known as the activation energy, stays the same with increasing temperature. An increase in temperature causes a rise in the energy levels of the molecules involved in the reaction, so the rate of the reaction increases.

As the temperature increases, more collisions will fall into this high energy regime. Lowering the activation energy means more molecules will undergo reaction at a given temperature, thus increasing reaction rate.