The internal energy of an ideal gas does not change in a reversible _____________ process?
Correct answer: A. Isothermal
- A. Isothermal
- B. Adiabatic
- C. Isobaric
- D. Isometric
Explanation
For an ideal gas, internal energy depends only on temperature. A reversible isothermal process keeps temperature constant, so the internal energy does not change.
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