The efficiency of a heat engine is maximum when it operates as:
Correct answer: A. Carnot cycle
- A. Carnot cycle
- B. Otto cycle
- C. Diesel cycle
- D. Rankine cycle
Explanation
The Carnot cycle provides the maximum possible efficiency for a heat engine operating between two given temperatures, as it consists of reversible isothermal and adiabatic processes.
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About Thermal Equilibrium and Heat
Thermal equilibrium means that bodies in contact have the same temperature and no net heat flows between them. The topic distinguishes heat from temperature, uses the zeroth law of thermodynamics, and covers heat transfer, specific heat capacity, thermal expansion and the conditions for reaching equilibrium.
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