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Q: Air in a piston/cylinder arrangement, is at 30 lbf/in 2, 540 R with a volume of 20 ft3, if the piston is at the stops the volume is 40 ft3 and a pressure of 60 lbf/in 2 is required. The air is then heated from the initial state to 2700 R by a 3400 R reservoir. Find the total irreversibility in the process assuming surroundings are at 70 F.