Exam-style question
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What is thermal equilibrium?.
- A.The state when two objects reach the same temperature and no heat flows between them
- B.The state when one object is hotter than another and heat flows from the hot to the cold object
- C.The state when energy is transferred from a colder object to a hotter object
- D.The state when two objects are at different temperatures but no heat transfer occurs
Model answer
What a good answer should say
- The state when two objects reach the same temperature and no heat flows between them
Explanation
Why this works
Thermal equilibrium occurs when two objects are at the same temperature, resulting in no net heat transfer between them. This concept is fundamental in understanding energy transfer in thermal physics.
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