5 Required Practical: Temperature Changes

Question 1

General guide to investigate the variables that affect temperature changes in chemical reactions.

Answer 1

• Measure temperature change
• Determine whether it is endo or exo
• Insulate experiment (polystyrene cup + lid)
• Digital thermometer for more precise data.
• Control variables (increase validity).
• Change independant variable (e.g. concentration of acid, metal being added).