Topic: Thermodynamics
Which of the following represent sterling cycle
- A. II
- B. I and III
- C. I and IV
- D. All of the above
Answer: B. I and III
Explanation: A Stirling cycle consists of two isothermal processes and two isochoric (constant volume) processes. Graph I shows this on a P-V diagram (two curves for isothermal and two vertical lines for constant volume). Graph III shows this on a T-S diagram (two horizontal lines for isothermal and two curves for constant volume).