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categoryالهندسة الميكانيكية schoolبكالوريوس event_available2026-07-15

السؤال

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Consider the piston-cylinder arrangement sketched in the figure. The mass of water is 2 kg and it is initially at V₁ =0.02 m³, T₁ = 50 °C. The water is heated and the piston; which is initially resting on stops; starts to move only when the pressure inside the cylinder is 100 kPa. The heating continues until it reaches a final state of 200 °C. Show all your work clearly. water m = 2 kg V₁ = 0.02 m² T₁ = 50°C (a) Fill in the following table with all properties at states 1, 2, & 3. water m=2 kg T₁ = 200 (3 points) P (kPa) T (°C) 22 m³ kg Quality V (m³) Phase X State 1 50 0.02 State 2 State 3 200 (b) Calculate the work done by the water, in kJ. (1 point) (c) Draw the process on the T-v and P-v diagrams with respect to saturation line. (1 point)

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