Calculate the work done W by a closed system containing m= 1kg of steam, when it is compressed (a) from pA = 0.1 MPa to pB = 2.5 MPa, isothermally at T = 400C and; (b) from pA = 0.5 MPa to pB = 2.5 MPa, isothermally at T = 600C .  Use steam tables and the trapezoidal rule for integration

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Edición P3. A piston-cylinder system contains 1 L of water at 105°C and 85% quality. I know adds energy, causing the plunger to travel until it makes contact with a spring of constant K = 100 N/mm, just at this moment, the volume of the water is 50% greater than the initial. The energy transfer continues until the volume is 1.7 L, and the temperature of the water reached 600°C. Make a schematic of the system according to the statement and calculate the water pressure when T = 600°C. Answer: 198.16kPa

Steam at 100°C is added to ice at 0°C. (a) Find the amount of ice melted and the final temperature when the mass of steam is 14 g and the mass of ice is 52 g.   g   °C (b) Repeat with steam of mass 2.1 g and ice of mass 52 g. g C