Answer Happy

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2: Consider power cycles which use gas. a: Draw the P-v diagrams for the three power cycles and label each process: Otto, Ericsson, and Brayton cycle. b: Draw the corresponding T-s diagrams for the three power cycles and label all the processes. c: Draw the corresponding T-v diagrams for the three power cycles and label all the processes. d: Write down and explain the thermal efficiency formulas for the cycles explicitly. e: Discuss how to improve the thermal efficiencies of the Otto cycle, the Ericsson, and the Brayton cycle.