Question detail
A student is revising Reaction profiles. Which correction best fixes a mistake about reaction profile?
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. reaction profile: correct Unit 4.5 answer for Reaction profiles
- B. Incorrect correction: repeats the misconception without fixing the energy idea
- C. Incorrect correction: changes the topic to a different Chemistry unit
- D. Incorrect correction: ignores the named process in Reaction profiles
Answer
The correct option is reaction profile: correct Unit 4.5 answer for Reaction profiles.
Explanation
The correct option is reaction profile: correct Unit 4.5 answer for Reaction profiles. It directly supports the approved learning objective to draw a simple reaction profile for an exothermic reaction. This application version 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
Mislabeling Reaction Profiles
Students often label the energy change in an exothermic reaction profile incorrectly, indicating that energy is absorbed instead of released.
Remember that in an exothermic reaction, energy is released to the surroundings, so the products should be at a lower energy level than the reactants.
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