Question

Increasing the concentration and increasing the temperature both increase reaction rates based on which physical phenomenon? (2 points)
Group of answer choices

Increasing the frequency of molecular collisions

Decreasing the activation energy

Increasing the behavior of inhibitors

Decreasing the speed of phase change

Answer 1

The correct answer is:

**Increasing the frequency of molecular collisions**

Increasing concentration leads to more molecules in a given volume, resulting in more frequent collisions. Increasing temperature provides the molecules with more kinetic energy, also leading to more collisions and more energetic collisions, which increase the reaction rate.