Learning objective
Explain why calculation of enthalpy change or ΔH is not required for this GCSE section.
Read the explanation, check the common trap, then practise with flashcards and questions.
At a glance
5
Flashcards
7
Questions
Topic
Exothermic and endothermic reactions
Subtopic
Energy transfer during exothermic and endothermic reactions
Study support
Understand this objective
Short explanation
Explain why calculation of enthalpy change or ΔH is not required for this GCSE section. This objective belongs to Energy transfer during exothermic and endothermic reactions within Exothermic and endothermic reactions for AQA GCSE Chemistry 8462. A strong answer should use calculation accurately, explain the chemistry behind the statement, and connect the idea back to the exact command in the objective. When revising, separate this point from neighbouring Chemistry ideas by naming the relevant particle, substance, process, calculation, observation, or structure before giving the final conclusion.
Key concepts
Why it matters
This objective helps connect Energy transfer during exothermic and endothermic reactions to exam-style questions, flashcards, and revision notes for Exothermic and endothermic reactions.
Common mistakes
1 linked- Misunderstanding Enthalpy Change: Remember that for this GCSE section, it is explicitly stated that the calculation of enthalpy change is not required.
Revision tools
Choose how to practise
Flashcards5 linked cards
Flashcard 1 of 5
Practice Questions7 linked questions
Question 1 of 7
Choose an answer, get feedback, then move sideways through the set.
Revision notestopic notes
Open the full topic revision notes when you are ready to review this objective in context.
Open revision notesRelated learning objectives
- State that energy is conserved in chemical reactions.
Energy transfer during exothermic and endothermic reactions
- Explain that a reaction transferring energy to the surroundings leaves products with less energy than the reactants by the amount transferred.
Energy transfer during exothermic and endothermic reactions
- Define an exothermic reaction as one that transfers energy to the surroundings.
Energy transfer during exothermic and endothermic reactions
- Explain that the temperature of the surroundings increases during an exothermic reaction.
Energy transfer during exothermic and endothermic reactions
- Identify combustion, many oxidation reactions and neutralisation as examples of exothermic reactions.
Energy transfer during exothermic and endothermic reactions