Question:
The Carnot cycle of a reversible heat engine consists of
The Carnot cycle of a reversible heat engine consists of
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Carnot cycle always has 4 steps → remember: IT + AD + IT + AD.
Updated On: May 2, 2026
- one isothermal and two adiabatic processes
- two isothermal and one adiabatic processes
- two isothermal and two adiabatic processes
- two isobaric and two isothermal processes
- two isochoric and two adiabatic processes
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The Correct Option is C
Solution and Explanation
Concept:
Carnot cycle is the most efficient reversible cycle consisting of four processes.
Step 1: Full cycle breakdown:
• Isothermal expansion (heat absorbed from hot reservoir)
• Adiabatic expansion (temperature falls)
• Isothermal compression (heat rejected)
• Adiabatic compression (temperature rises)
Step 2: Count processes:
• Isothermal = 2
• Adiabatic = 2 Final Answer: Two isothermal and two adiabatic processes.
Step 1: Full cycle breakdown:
• Isothermal expansion (heat absorbed from hot reservoir)
• Adiabatic expansion (temperature falls)
• Isothermal compression (heat rejected)
• Adiabatic compression (temperature rises)
Step 2: Count processes:
• Isothermal = 2
• Adiabatic = 2 Final Answer: Two isothermal and two adiabatic processes.
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