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An ideal gas (take y= 1.5) undergoes a cycle which consists of three processes as shown below. Process 1 -> 2 is an isochoric (constant volume) process, process 2 -> 3 is an adiabatic process, and process 3- 1 is an isobaric process. Find the total work (net work) done by the cycle given that P, = 2.0 x 10* Pa, P, = 16.0 x 10* Pa, P3 = 2.0 x 10" Pa, V, = 0.85 m , and V, = 0.85 m . Pressure P2 P, V3 VolumeThe temperatures Tof the cold reservoirs and the temperatures Ty of the hot reservoirs for four Carnot heat engines are: engine 1: T = 300K and Ty = 600K; engine 2: T = 600K and Ty = 900K; engine 3: T. = 700K and T_ = 800K; engine 4: T = 200K and Ty = 600K. Rank these engines according to their efficiencies, least to greatest