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2. One kilogram of water is contained in a piston-cylinder device at 100°C. The piston rests on lower stops such that the volume occupied by the water is 0.835 m³. The cylinder is fitted with an upper set of stops. When the piston rests against the upper stops, the volume enclosed by the piston-cylinder device is 0.841 m³. A pressure of 200 kPa is required to support the piston. Heat is added to the water until the water exists as a saturated vapor. How much work does the water do on the piston? Find the required heat transfer to the water. (Points 20+20=40)

          2. One kilogram of water is contained in a piston-cylinder device at 100°C. The piston rests on lower stops such that the volume occupied by the water is 0.835 m³. The cylinder is fitted with an upper set of stops. When the piston rests against the upper stops, the volume enclosed by the piston-cylinder device is 0.841 m³. A pressure of 200 kPa is required to support the piston. Heat is added to the water until the water exists as a saturated vapor. How much work does the water do on the piston? Find the required heat transfer to the water. (Points 20+20=40)

2. One kilogram of water is contained in a piston-cylinder device at 100°C. The piston rests on lower stops such that the volume occupied by the water is 0.835 m³. The cylinder is fitted with an upper set of stops. When the piston rests against the upper stops, the volume enclosed by the piston-cylinder device is 0.841 m³. A pressure of 200 kPa is required to support the piston. Heat is added to the water until the water exists as a saturated vapor. How much work does the water do on the piston? Find the required heat transfer to the water. (Points 20+20=40)

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