, Consider a heat engine that uses a cylinder-piston configuration as its Th reservoir and a constant volume tank as its Tyreservoir. The cylinder-piston contains air at 100 kg, 700K, 700 kPa. The constant volume tank has air at 100 kg, 300K, 100 kPa. If the engine is reversible, determine the final temperature of the system and Wnet,out- Note that the source and sink are not thermal reservoirs, so Th and T, are not constant, and after the process is done, they both reach a final temperature of the system at Tm. Use SQL TL for a reversible heat engine. Note that for a constant pressure process, SQh 8Q SW = dU SQh = dH = mcpdt. Also, for a constant volume process SQL = mcydt. Assume k = Cp = 1.4 for air. TH = = Cv