Five kilograms of water, initially a saturated vapor at 100 kPa, are cooled to saturated liquid while the pressure is maintained constant. Determine the work and heat transfer for the process, each in kJ. Show that the heat transfer equals the change in enthalpy of the water in this case.

Q: A cylinder fitted with a piston has a volume of 0.4 m2 and contains 1.0 kg of steam at 0.4 MPa. Heat…

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Q: A mass of 5 kg of saturated liquid-vapor mixture of water is contained in a piston- cylinder device…

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Q: 2kg of air occupying 0.7 m3, had an original temperature of 15°C. It was heated then at constant…

A: Given that, mass of air =2kg volume of air =0.7m3 initial temperature=15°C…

Q: Saturated water vapor at (T1,P1) is condensed to a saturated liquid at (T2,P2) in a spring-loaded…

A: State 1: T1,P1State 2: T2,P2T1>T2

Q: ngerar me of the tank is 1.8 m and heat is transferred until the refrigerant is saturated vapor at…

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Q: Q2/ A cylinder and a piston holding a spring containing 3 kg of carbon dioxide at a pressure of 400…

A: Given data: Here, m represents the mass, Pi represents the inlet pressure, Vi represents the inlet…

Q: A cylinder and a piston holding a spring containing 3 kg of carbon dioxide at a pressure of 400 kPa…

A: Given data, m = Mass of the CO2 = 3 Kg P1 = Initial pressure of the CO2 = 400 KPa T1 = Initial…

Q: Refrigerant-134a Arigid tank contains saturated liquid and vapor mixture of Refrigerant-134a at 30…

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Q: a) A system of piston cylinder contains 5 kg of water at 150 kPa and 25 °C. Cross sectional area of…

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Q: 3 kg of wet vapor, having a quality of 33% expands at a constant pressure of 5.6 MPa inside a…

A: Mass of wet vapor, m=3 kg Dryness fraction, x=0.33 Pressure, P=5.6 MPa Quality of steam defines the…

Q: One pound of air at 17.2 psia, 450 F is heated at constant volume until the temperature becomes 630…

A: Write the given data with suitable variables: m=1 lbmP1=17.2 psiaT1=450 °FT2=630 °F

Q: water contained in a closed, rigid tank, initially saturated vapor at 280 Celsius, is cooled to 100…

A: Given data:- Rigid tank means constant volume, initially saturated vapor at 280 °C and final…

Q: Piston Water A piston cylinder system initially contains 2.0 kg of water at 0.3 MPa ad 20% quality.…

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Q: A well-insulated rigid tank having a volume of 0.5 m3 contains saturated water vapor at 125 oC. The…

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Q: For the situations below briefly explain how you obtained the values and provide the numerical…

A: It is required to determine properties for given process

Q: An insulated piston-cylinder device initially contains 2.1 kg of Argon at 100 kPa and 300 K. Now an…

A: Given data  mass of argon gas (m)= 2.1 kg  pressure (P) = 100 kPa Temperature (T) = 300 K time = 6…

Q: Q3/ Cylinder contained a gas undergoes two series processes, the first process is according to the…

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Q: Two-fifth Ib of gas is contained in a piston cylinder assembly at 1.6ft/lb and 100psia. The gas is…

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Q: A mass of air (molecular mass equal to 28.97 g/mol) at 150 kPa and 27 ‰is contained in a…

A: In the question , it is given that the gas is having a pressure of 150kpa, now first the gas will…

Q: air is cooled during an isobaric process at 4.39 atm from initial specific volume of 1.2 m3/kg to a…

A: For solution refer below images.

Q: (Q2) A piston cylinder device contains 4 kg of water. The piston has a diameter of 10 cm. The local…

A: Given: The mass of water inside the piston cylinder device, m = 4 kg The diameter of piston, d 10 cm…

Q: Certain mechanical equipment uses nitrogen gas contained in a cylinder by a piston. The initial…

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Q: 0.3 kg of carbon dioxide is contained in a cylinder with a piston. Initial conditions are 200 kPa…

A: Given data  mass of carbon di oxide (m) = 0.3 kg  Initial pressure (P1) = 200 kPa Initial…

Q: In what state will water be if the pressure and internal energy are 750 kPa and 1000 kJ/kg,…

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Q: Three kilograms of steam initially at 2 MPa & 350 celsius at constant temperature until quality of…

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Q: The molar specific heat at constant volume of an ideal gas is equal to 2.5 times the universal gas…

A: Given:molar specific heat at constant volume of an ideal gas= 2.5 times the universal gas…

Q: For a certain ideal gas (R = 25.8 ft.bf/lbm.R and k = 1.09 ) occupy a volume of 15 ft3 at 75 psia…

A: Given data: V=15 ft3P1=75 psia=10800 lbf/ft2T1=80°F=539.67 RP2=80 psia Need to determine the heat…

Q: A rigid tank whose volume is unknown is divided into two parts by a partition. One side of the tank…

A: Answer: The final temperature of the gas is 3327℃.

Q: 1.)What is the condition of the liquid at 212 F and 14.696 psia  is :  2.) The vapor at 212 F and…

A: (1) The condition of liquid at 212 F and 14.696 psi is the boiling condition. After this condition,…

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.