(Solved): If possible, I would like a more in-depth answer to the question to follow the reasoning better ...

If possible, I would like a more in-depth answer to the question to follow the reasoning better. Thanks!

2. (35pts.) An engine with an ideal gas (adiabatic index y) as working fluid, runs on the closed Brayton cycle shown in the PV diagram below. The processes 1 + 2 and 3 + 4 are adiabatic. P 2 3 LOP, 1 4 V, 30./2 (a) Find the efficiency of this engine as a function of y (and nothing else). ? (b) Compare the result in (a) with the efficiency of a Carnot engine operating between the highest and lowest temperatures reached if the ideal is i. Monoatomic. ii. Diatomic. iii. Triatomic (Cy = 3R). (c) Which gas from part (b) would you pick as a working fluid? Explain.