Explain how temperature affects the rate of a chemical reaction, using the collision theory.

According to collision theory, increasing the temperature increases the kinetic energy of the particles, leading to more frequent and energetic collisions. This results in a higher rate of reaction as more particles have the energy required to overcome the activation energy barrier. This answer is anchored to AS apparatus and techniques.

According to collision theory, increasing the temperature increases the kinetic energy of the particles, leading to more frequent and energetic collisions. This results in a higher rate of reaction as more particles have the energy required to overcome the activation energy barrier. is the best answer because it directly supports the AQA A-Level Chemistry objective to measure reaction rates using appropriate methods. This reasoning is anchored to AS apparatus and techniques in AS practical skills and required practical activities, and it separates rates from similar A-Level ideas rather than relying on a vague recall statement. Other options are weaker if they use the wrong evidence, calculation, mechanism, observation, unit, or conclusion for this subtopic.