Why does temperature affect the rate of a reaction?
I. There are more total collisions among reactant molecules at a higher temperature.
II. Each collision is more energetic at higher temperatures.
III. The fraction of collisions with the proper orientation increases at higher temperatures.

Question

Quizplus · Accepted Answer

Temperature affects the rate of a reaction because at higher temperatures, there are more total collisions among reactant molecules (I) and each collision is more energetic (II). However, the fraction of collisions with the proper orientation does not necessarily increase with temperature (III).

Why Does Temperature Affect the Rate of a Reaction