Required practical 3: investigate how rate changes with temperature.

In the subtopic AS required practical activities, this AQA A-Level Chemistry 7405 learning objective focuses on required practical 3: investigate how rate changes with temperature. It belongs to AS practical skills and required practical activities, so revision should stay anchored to this exact subtopic rather than drifting into a generic GCSE-level chemistry summary. Approved keywords to use include required practical, rate. Reaction rate. means the speed at which reactants are converted into products in a chemical reaction, often measured in moles per liter per second (mol/L/s) Avoid the mistake of students often believe that increasing temperature always increases reaction rate without considering the specific reaction conditions; instead, to accurately assess how temperature affects reaction rate, use the formula for rate change: Rate ∝ 1/Temperature. For example, if the temperature increases from 20°C to 40°C, substitute into the formula to find the new rate. Calculate the rate change to conclude how the reaction rate is affected by temperature For exam answers, always record temperature accurately during experiments to observe its effect on reaction rates