Question detail
Which example applies calculation accurately within Exothermic and endothermic reactions?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Exothermic and endothermic reactions
Question
- A. calculation: correct Unit 4.5 answer for Energy transfer during exothermic and endothermic reactions
- B. Incorrect example: uses a device, reaction, or diagram not linked to calculation
- C. Incorrect example: gives evidence without explaining the energy transfer
- D. Incorrect example: describes a broad practical skill instead of the objective
Answer
The correct option is calculation: correct Unit 4.5 answer for Energy transfer during exothermic and endothermic reactions.
Explanation
The correct option is calculation: correct Unit 4.5 answer for Energy transfer during exothermic and endothermic reactions. It directly supports the approved learning objective to explain why calculation of enthalpy change or ΔH is not required for this GCSE section. This diagram version keeps the answer anchored to Energy transfer during exothermic and endothermic reactions within Exothermic and endothermic reactions, and avoids mixing energy transfer, reaction profiles, activation energy, chemical cells, fuel cells, exothermic reactions and endothermic reactions unless the objective names them.
Common mistake
Misunderstanding Enthalpy Change
Students often think that calculating enthalpy change (ΔH) is necessary for all reactions in this section.
Remember that for this GCSE section, it is explicitly stated that the calculation of enthalpy change is not required.
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