Consider 100 kg of steam initially at 20 bar and 240°C as the system. Determine the change in exergy, in kJ, for each of the following processes: a) The system is heated at constant pressure until its volume doubles b) The system explands isothermally until its volume doubles Let To = 20°C, Po = 1 bar and ignore the effects of motion and gravity.

Q: b- A 2kg/s of steam enters a turbine at 1Mpa ,400 °C with a velocity of 10m/s and leaves at very…

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A: Introduction: In thermodynamics, we normally deal with two types of systems: open systems and closed…

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Q: that takes a from a pi, Ti, Vi to a state characterized by pf, Tƒ‚ Vƒ. = 20 Create an adiabatic…

A: Given data:- The initial pressure in an adiabatic process,  pi=2×105 N/m2 and initial volume vi=0.1…

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Q: A closed system with 2 kg of Refrigerant 134a is initally at 5 bar and 20°C. If the system undergoes…

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Q: 4 kg of saturated water at 59.3 C undergoes a process during which the temperature increases to 120…

A: Option d is correct.

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A: m=2lbP1=P2=35lbf/in2state 1P1 =35lbf/in2 and saturated liquid T=259.30 F= 718.97 Rv1 = 0.01708…

Q: Part II 11. Two lbm of air initially at P₁= 15 psia and T₁ = 150 °F undergoes a cycle consisting of…

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Q: Two pounds of air initially at 200°F and 50 lbf/in2 undergo two processes in series:      Process…

A: Solution.jpg

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Q: a. 2et +5i – 4en +6j गँ en ↑ \ 23° i

A: The vector is

Q: Refrigerant 134a at p₁ = 30 lb/in², T₁ = 40°F enters a compressor operating at steady state with a…

A: Given data: p1=30 lbf/in2T1=40°Fm˙=225 lb/hp2=160 lbf/in2To=40°FW˙C=-2.25 hp=-5725 Btu/hr Need to…

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A: P1=500 kPa, T1=25 Cexit state: P2=500 kPa, T2=500 C

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Q: nally reversible expansion to x2 = 90%.

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A: .

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Q: 2.5 kg of saturated water at 80.9 C undergoes a process during which the temperature increases to…

A: Option a is correct.

Q: The net change in volume (a property) during a cycle is always zero.

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