A Piston-cylinder containing 300 lit of steam at 700 kPa and 250oC undergoes a constant pressure process until the quality is 70%. Determine;  the mass of steam  final temperature  final volume

Q: (Q1) A piston-cylinder device contains 4.2 kg of argon at 950 kPa and 310°C is expanded according to…

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Q: An gas whose pressure, volume and temperature are 275 KN/m³, 0.09 m³ and 365 °F, respectively, has…

A: GivenP=275 kN/m2=275kPaV=0.09m3T1=365oF=458.15KT2=15oC=288KR=0.29 kJ/kgKCp=1.005kJ/kgK

Q: 40.) A piston-cylinder device initially contains 0.07 m3 of nitrogen gas at 130 kPa and 120 C. The…

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Q: 2 lbm /min of a certain gas whose R = 767 ft-lb f /lb m -R, undergoes a steady flow isentropic…

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Q: 5 lbm of air expands inside a piston cylinder configuration at a constant pressure of 24 psia.…

A: Given data  mass of air (m) = 5 lbm  pressure (P) = 24 psia change in temperature (∆T) = 100oF…

Q: 1. A saturated water vapor is in a tank with a volume of 2.5 ft. It has a pressure at 25 psia. Due…

A: Given dataV=2.5ft3P=25PsiaT=75°F ***As per our company policy we are supposed to do only 3 subparts…

Q: An insulated piston-cylinder device initially contains 2.3 kg of Argon at 100 kPa and 300 K. Now an…

A: Given Data- m=2.3kg of Argon P=100kPa =100×103 Pa T=300K t=6 min=6× 60 sec V2=2.5×V1 To find- Power…

Q: A piston-cylinder device initially contains 0.85 m³ of air at 109 kPa and 93°C. The air is now…

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Q: During a steady flow process, the pressure of the working substance drops from 200 to 20 psig, the…

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Q: 10 lbm of ammonia (MW = 17), is heated inside a cylinder equipped with a piston. The initial…

A: m=10 lbm=4.53592 kgP1=63 psi=4.3437 barT1=50°F=283.15 KT2=100°F=310.928 K…

Q: (a) A piston-cylinder device initially contains steam at 200 kPa, 200°C, and 0.4 m³. At this state,…

A: Given:P1=200 KpaT1=200°CV1=0.4 m3P2=250 KPaV2=0.6 m3

Q: An insulated vertical cylinder-piston device contains 0.8 m3 of refrigerant 134a at 1.2 MPa and 120…

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Q: Problem No 1: A 1.5 kg of gas expands in a closed system from 6.5 kPaa and 60 liters to 100 liters.…

A: Given : Initial pressure P1 = 6.5 kPa V1 = 60 litres = 60/1000 =0.06 m3 V2 = 100 litres = 100/1000 =…

Q: An gas whose pressure, volume and temperature are 275 KN/m³ ,0.09 m³ and 365 °F, respectively, has…

A: Given Data  Initial state of the gas P1=275KN/m2 V1=0.09 m3 T1=365F=458.15K T2=15C=273.15+15=288.15K…

Q: An insulated piston-cylinder device initially contains 2.3 kg of Argon at 100 kPa and 300 K. Now an…

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Q: During a steady flow process, the pressure of the working substance drops from 200 to 20 psia, the…

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Q: A 0.8 m' rigid tank contains refrigerant-134a initially at 1.80 bar and 30 percent quality. Heat is…

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Q: piston-cylinder containing steam at 700 kPa and 250o C undergoes a constant pressure process until…

A: Given data :-  Pressure = 700kpa Temperature = 250 ° C

Q: . Water vapor is placed in a container with a constant volume of 1.2m^ 3 at 5Mpa and 300℃. When the…

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Q: ^3/kg During the process the pressure varies according to P = 620 + 150v + 95v^2 where p is in kPa…

A: Given:M=7.1 Kg/Kg molP1=600 KPaT1=280 Kv2=0.5 m3/KgP=620+150v+95v2

Q: A rigid vessel contains 2 kg of steam at 6.35 Mpa and 375°C.Determine it's entalphy in kJ using…

A: Given          Mass, m = 2 kg        Pressure =  6.35 Mpa Temperature =  375°C

Q: One pound of an ideal gas undergoes and isentropic process from 95.3 psig and a volume of 0.6 ft3 to…

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Q: With the valves open, the radiator of a steam heating system has a volume of 0.06 m' and contains…

A: Given data: The volume of the system, vs=0.06 m3. The dryness fraction, x = 1. The initial…

Q: 2. An ideal gas undergoes a process for which the temperature remains constant at 75°C. The pressure…

A: Given data :- Temperature = 75 ° C  Initial pressure P1 =145 kpa  Final pressure P2 = 185 kpa…

Q: A steam boiler initially contains (5 m3) of steam and (5 m3) of water at (10 bar). Steam is taken…

A: Given:P=10 barVs1=5 m3Vw1=5 m3Vw2=4 m3 Given:

Q: A 10 kJ of heat is added isothermally to a piston- cylinder arrangement containing 0.5 kg Nitrogen.…

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Q: A gas contained in a piston cylinder. The gas expands slowly from an initial pressure and volume of…

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Q: Helium steadily enters a pipe with a mass flow rate of 8 kg/s at 427°C and 100 kPa and leaves the…

A: Given: The mass flow rate of the helium is m=8 kg/s. The pressure of the helium is P=100 kPa. The…

Q: Q5: 1-kg of carbon dioxide is compressed from 1 MPa and 200°C to 3 MPa in a piston-cylinder device…

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Q: An ideal gas at 180 kPa, 35oC and occupies a volume of 0.3 m3 rigid container at 150 kPa and 0.42 m3…

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Q: During a steady flow process, the pressure of the working substance drops from 200 to 20 psia, the…

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Q: 78. Oxygen at 200kpag, 57°F is contained in a piston-cylinder device arranged to maintain a constant…

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Q: A rigid vessel contains 5kg of wet steam at 0.4 after the additional of 9585kj the steam has a…

A: Given     Rigid vessel means the constant volume            Heat added, Q = 9585 kJ

Q: 2 kg of saturated water at 69.7 C undergoes a process during which the temperature increases to 120…

A: Given, mass of water = 2 kg initial temperature T1 = 69.7 C final temperature T2 = 120 C pressure P…

Q: To get to a final state of 300°C, steam is expanded at a constant pressure of 0.90 kg/s and 70…

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Q: A gas tank contains 0.5m3 of propane at 350kPa and 230oC. The propane is now expanded polytropically…

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Q: 2. A 1-m' rigid volume contains water at 90°C with a quality of 0.B. Determine the final temperature…

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Q: An Insulated rigid tank containing 0.25 m3 of air at 50 oC and 1.5 Bar. If a paddle wheel with a…

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Q: Three kilograms of steam initially at 2.5 MPa and a temperature of 370°C have 2460 kJ of heat…

A: The heat exchanger is a device used to transfer heat from one fluid to another fluid. For heat…

Q: A piston-cylinder contains gas initially at 3500 kPaa with a volume of 0.03 m². The gas is…

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Q: A piston/cylinder device loaded with a linear spring initially contains saturated liquid water at…

A: Heat is a form of energy that is transferred from one body to another as a result of change in…

Q: A system contains 0.15 m3 of a gas at a pressure of 3.8 bar and 1500C.It is expanded adiabatically…

A: Given Data: Initial volume of the gas (V1)=0.15 m3 Initial pressure of the gas (p1)=3.8…

Q: A certain gas initially at 103 kPaa and 58 liters undergoes a change of state to 620 kPaa and 18…

A: Given data: The initial pressure, P1 = 103 kPa. The initial volume, V1 = 58 L. The final pressure,…

Q: 7.) For a certain ideal gas (R = 25.8 ft.bf/lbm.R and k = 1.09 ) occupy a volume of 15 ft' at 75…

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Q: Which of two gases—neon or air—produces more work when expanded from P1 to P2 in a closed-system…

A: The system in which neon and air are kept is same.So the pressure temperature nd volumes at initial…

Q: (Q1) A piston-cylinder device contains 3.6 kg of carbon monoxide at 1400 kPa and 370°C is expanded…

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Q: For an ideal gas if the specific internal energy at a specific pressure and temperature of 20 °C is…

A: Given for an ideal gas, specific internal energy at given pressure is u=349.6

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.