Liquid water enters a valve at 300 kPa and exits at 275 kPa. As water flows through the valve, the change in its temperature, stray heat transfer with the surroundings, and potential energy effects are negligible. Operation is at steady state. Modeling the water as incompressible with constant density, ? = 1000 ?g/?^3, determine the change in kinetic energy per unit mass of water flowing through the valve, in kJ/kg.

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

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Q: A pump is used to circulate hot water in a home heating system. Water enters the well-insulated pump…

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Q: thermodynamic steady flow system receives 4.56 kg at a boundary where p, = 551.6 kPa, v; - 0.193…

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Q: A cylinder-piston apparatus contains nitrogen initially at 20 bar, 107ºC and 0.3 m ^ 3. The piston…

A: Given: Initial condition of the nitrogen are: 20 bar, 107ºC and 0.3 m ^ 3 Final pressure of the…

Q: 2 kg of air, which can be modeled as an ideal gas, undergoes an isothermal process from 1.3bar and…

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Q: Refrigerant 134a enters an insulated diffuser as a saturated vapor at 80 deg F with a velocity of…

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

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Q: A pump is used to circulate hot water in a home heating system. Water enters the well-insulated pump…

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Q: Water vapor undergoes the following processes: a. From a state at 200 kPa and 600 ° C it expands…

A: Given: Water vapor undergoes three process in a cycle. Process a: Isothermal expansion process…

Q: Argon gas flows through a well-insulated nozzle at steady state. The temperature and velocity at the…

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Q: What is the work of the compressor in KJ/kg?

A: Given:  P2 = 90 bar=9000 kPa T2 = 625 oC P3 = P4 = 16 bar= 1600 kPa

Q: Water vapor enters a turbine operating at steady state at 1000°F, 150 lbț/in², with a volumetric…

A: given data; ⇒entry temperature in turbine (T1)=10000F=255.92k⇒entry pressure in turbine…

Q: Refrigerant 134a enters an insulated diffuser as a saturated vapor at 80°F with a velocity of 1400…

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Q: Refrigerant 134a enters an insulated diffuser as a saturated vapor at 80°F with a velocity of 1400…

A: Given that: The working fluid is R134a. At the inlet of the diffuser, T1 = 80oF V1 = velocity of…

Q: Water contained in a closed, rigid tank, initially at 100 lb;/in², 800°F, is cooled to a final state…

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Q: = 71°C with v₁ = 0.201 m³/kg. The gas v1 A piston-cylinder assembly holds 1.2 kg of air initially at…

A: First, we need to convert the temperatures from Celsius to Kelvin because the entropy change…

Q: Equations of State for a gas; P.v = 0.004 (T + 273) U=U0+1,2 T given in the form. In equations P:…

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Q: Available energy of the air stream

A: Given; Pressure,p=5 barvelocity,v=50 m/stemperature,t=500 KSpecific heat, =1.005 kJ/KG-kconstant…

Q: An oxygen gas R = 0.2598 KJ/kg°k and k = 1.395. If 4 kg of oxygen undergo a reversible non flow…

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Q: Refrigerant 134a enters an insulated diffuser as a saturated vapor at 80°F with a velocity of 1400…

A: To determine:- a) Mass flow rate b) Exit temperature Given data, The refrigerant is R-134a The Inlet…

Q: Air at 8 bar, 100°C flows in a duct of 15 cm diameter at rate of 150 kg/min. It is then throttled by…

A: Find the cross sectional area of the ductA using the diameter of the duct. A=π4d2=π40.152 m2   Air…

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

A: The solution are given in the attachment

Q: Argon gas flows through a well-insulated nozzle at steady state. The temperature and velocity at the…

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Q: Argon gas flows through a well-insulated nozzle at steady state. The temperature and velocity at the…

A: . I

Q: Air within a piston-cylinder assembly, Intelally at 33 lbt/in", $10R, and a volume of 6 ft", is comp…

A: GivenP1=33 lbf/in2=33× 6.895=227.527 kPaT1=510oR=510°R × 5/9 = 283.333KV1=6 ft3=6×0.30483=0.1699…

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

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Q: 0.25kg/s of Carbon Dioxide (R=0.1889 kJ/kg-K, k=1.289) undergo a certain process in a close system…

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Q: Refrigerant 134a enters an insulated diffuser as a saturated vapor at 80°F with a velocity of 1400…

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Q: A pump is used to circulate hot water in a home heating system. Water enters the well-insulated pump…

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Q: 6. A fluid at a pressure of 3 bar and specific volume of 0.18 m³/kgm contained in a piston cylinder…

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Q: A pump is used to circulate hot water in a home heating system. Water enters the well-insulated pump…

A: The solution to the above problem is given below

Q: A pump is used to circulate hot water in a home heating system. Water enters the well-insulated pump…

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Q: 3)In the first case, there is 5 kg of water and 60% dryness at 300 kPa (3 bar) pressure in a closed…

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Q: Q1: An air receiver contains air at 16 bar and 42°C. A valve is opened and some air is allowed to…

A: Given: The temperature of air initially, T1 = 42 C The pressure of air initially, P1 = 16 bar The…

Q: One kg of an ideal gas (gas constant R = 287 J/kg.K) undergoes an irreversible process from state-1…

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Q: Q3: A certain fluid at Pressure of 6 bar, and with a specific volume of 0.12 m³/kg. Contained in a…

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Q: Argon gas flows through a well-insulated nozzle at steady state. The temperature and velocity at the…

A: Given:- Argon gas flowing through a well insulated nozzle at steady stateTemperature at inlet (T1) =…

Q: Examine the systems given below in terms of the change in entropy as a result of a state change and…

A: The change in entropy of the system is equal to summation of entropy transfer into the system and…

Q: Q6/ In a closed system, 0.957 kg of a certain perfect gas initially has a pressure of 15 bar, volume…

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Q: Argon gas flows through a well-insulated nozzle at steady state. The temperature and velocity at the…

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Q: Twenty pounds per second of steady-flow steam enters a nozzle at P1 = 200 psia and 1059.67°R, and a…

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Q: Consider a turbine operating at steady-state with the operating conditions shown in the figure.…

A: (a) Write the formula for the net power generated in the turbine. W˙net=m˙h1-h2 Here, m˙ is the mass…

Q: The change in entropy S2- S

A: Given; 1kg of air where,R=287 J/kg KState1:  T1=200C               V1=0.9 m3 State:    T2=200 C…

Entropy

In physics, entropy means the amount of disorder or the degree of randomness associated with a thermodynamic system. The system is not self-organized when the entropy of the system is high. For instance, when a system is at an elevated temperature, its molecules are in random motion, vibrating and colliding with each other. During this scenario, the probability of finding a molecule at a particular place twice, is low. Under this circumstance, the system can be said to be in a high entropy.