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3.21 As shown in Fig P3.21, 0.1 kg of water is contained within a piston-cylinder assembly at 100°C. The piston is free to move smoothly in the cylinder. The local atmospheric pressure and acceleration of gravity are 100 kPa and 9.81 m/s², respectively. For the water, determine the pressure in kPa and volume in cm³.
g = 9.81 m/s²
Patm = 100 kPa
Piston mass = 50 kg
Water mass = 0.1 kg at 100°C
Fig. P3.21