Question detail
For Reaction profiles, which answer best supports this AQA GCSE Chemistry Unit 4.5 objective: Explain that reacting particles must collide with sufficient energy for a reaction to occur?
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. sufficient energy: correct Unit 4.5 answer for Reaction profiles
- B. Incorrect: confuses sufficient energy with a nearby Energy changes idea
- C. Incorrect: gives a general chemistry statement without linking to Reaction profiles
- D. Incorrect: reverses the energy-change relationship in Exothermic and endothermic reactions
Answer
The correct option is sufficient energy: correct Unit 4.5 answer for Reaction profiles.
Explanation
The correct option is sufficient energy: correct Unit 4.5 answer for Reaction profiles. It directly supports the approved learning objective to explain that reacting particles must collide with sufficient energy for a reaction to occur. This keeps the answer anchored to Reaction profiles 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 Collision Theory
Students often think that any collision between particles will result in a reaction, without considering the energy involved.
Emphasize that for a reaction to occur, particles must collide with sufficient energy, known as activation energy.
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