Required practical: investigate how reaction rate changes with temperature.

In the subtopic Factors affecting reaction rate, this AQA A-Level Chemistry 7405 learning objective focuses on required practical: investigate how reaction rate changes with temperature. It belongs to Kinetics, so revision should stay anchored to this exact subtopic rather than drifting into a generic GCSE-level chemistry summary. Approved keywords to use include temperature, rate. Collision frequency. means the number of collisions that occur per unit time between reacting particles Avoid the mistake of students often confuse activation energy with the overall energy change of a reaction, thinking it is the same as the enthalpy change; instead, activation energy is the minimum energy required for a reaction to occur, not the total energy change. To clarify, remember that activation energy is a barrier that must be overcome for reactants to convert into products. For example, if a reaction has an activation energy of 50 kJ/mol, this means that the particles must collide with at least this energy for a reaction to take place For exam answers, conduct experiments to measure how varying temperatures influence the rate of reaction