Question

The 3rd step of the Carnot cycle is?

• A. reversible isothermal expansion
• B. reversible adiabatic expansion
• C. reversible adiabatic compression
• D. reversible isothermal compression

Answer 1

Answer:

D. reversible isothermal compression

The 3rd step of the Carnot cycle is reversible isothermal compression The third step of the Carnot cycle involves reversible isothermal compression, which occurs at a constant temperature. During this process, heat is expelled from the system to the surroundings. The temperature remains constant while the volume decreases and the pressure increases. This step helps in maintaining the cycle's efficiency by compressing the gas without any change in temperature.