The net change in entropy in the Carnot cycle is:
Correct answer: A. Zero
- A. Zero
- B. Positive
- C. Negative
- D. None of the above
Explanation
The Carnot Cycle is a thermodynamic cycle that consists of four subsequent reversible processes: isothermal expansion, adiabatic expansion, isothermal compression, and adiabatic compression.Entropy does not change during adiabatic processes because dQ is 0.
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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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