Exam-style question
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Explain the energy transfers involved in a heat pump during the heating process.
Model answer
What a good answer should say
- In a heat pump, energy is transferred from a low-temperature reservoir to a high-temperature reservoir.
- The pump absorbs thermal energy from the outside environment and uses work input to transfer this energy indoors, effectively heating the space.
Explanation
Why this works
This answer demonstrates an understanding of the energy transfer process in a heat pump, highlighting the direction of energy flow and the role of work input. It tests the ability to explain thermodynamic principles in practical applications.
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