Exam-style question
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What is the first law of thermodynamics?.
- A.Energy cannot be created or destroyed, only transformed.
- B.The total energy of an isolated system remains constant.
- C.Heat energy is always lost in any process.
- D.Work done is equal to the change in internal energy.
Model answer
What a good answer should say
- Energy cannot be created or destroyed, only transformed.
Explanation
Why this works
The first law of thermodynamics states that energy cannot be created or destroyed, only transformed from one form to another. This principle is fundamental in understanding energy transfers in thermodynamic processes.
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