An insulated piston-cylinder device contains 200 L of air at 292 kPa and 25 °C. A paddle wheel rotates until the temperature is 480 °C. During the process, the pressure is keeping constant. Determine the work done by the paddle wheel (kJ). Use property tables to solve the problem.

Q: Two tanks containing water are connected by a line with a closed valve. Tank A is 1 m3 in volume,…

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Q: Q2: Air in A frictionless piston-cylinder device is compressed slowly according to the relation…

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Q: A cylinder fitted with a piston contains oxygen has an innitial volume of 0.2 m and pressure 200 kpa…

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Q: system (calculate quality if appr ure of the system. Show how pol for

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Q: An ideal gas is taken through a quasi-static process described by P = av2, with a = 2.00 atm/m°, as…

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Q: An isolated cylinder contains saturated water at 200oC. The cylinder initial volume was 25 L. The…

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Q: A piston/cylinder assembly with a spring contains 0.075 kg of water. The piston is initially resting…

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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: 3) A frictionless piston-cylinder device contains 3 m3 of a gas at 200 kPa and 300 K. The gas is now…

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Q: Five kg of air at 100 kPa and 25oC are compressed according to the law PV1.3 = C until its pressure…

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Q: A tank, having a volume of 5 m3, is filled with N2 and 2 kg of CO2 at a pressure and temperature of…

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Q: A ball having 7.62 cm radius contains air (R = 53.3 lbf – ft/lbm - R) at 235.3 psig and 550R. After…

A: Given Data, r= radius of the ball = 7.62 cm = 7.62x0.393701 = 3 inch V = Volume of the ball =…

Q: A. Two kg of steam with a quality of 22 percent is heated at a constant pressure of 300 kPa until…

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Q: A rigid container contains m = 3 kg of air. The air changes from an initial state of P1 = 0.5 MPa…

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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: Q2/ A cylinder and a piston hokding a spring containing 2 kg of oxygen at a pressure of 350 kPa and…

A: GivenP1=350kPa=350×103N/m2P2=150kPa=150×103 N/m2T1=250°C=250+273=523KT2=60°C=150+273=333KMass of…

Q: enthalphy of 3015.2 Kj/kg undergoes a constant pressure at 1 mpa until the enthalphy becomes 2100…

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Q: In a piston-cylinder setup, 2 kg of water undergoes a constant temperature expansion at Temperature…

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Q: CO gas used in a piston cylinder assembly is compressed from 0.5 m3 to 0.1 m3 volume. The…

A: The given values are -V1=0.5m3 , V2=0.1m3P=4V2 kPa The work done is given by -…

Q: Consider 6.5 kg of air at T1= -53°C in a frictionless cylinder and piston. By applying heat to the…

A: Given: Mass of air=6.5kg The initial temperature of air T1=-53°C or 273-53=220K

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Q: 2. A dividing wall divides an insulated container into two compartments as shown in the figure.…

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Q: pressure from 1 bar to 30 bar. Take the density of theliquid as 990 kg/m³. The isentropic specific…

A: given:density ρ=990kg/m3dp=30bar

Q: Thermodynamic. Determine the work needed to compress from V1=30 lt to V2=5 lt a gas applying a…

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Q: A frictionless piston-cylinder device contains 2 kg of nitrogen at 100 kPa and 300 K. Nitrogen is…

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Q: Water is stored in a closed tank of capacity 0.1m3. The quality of water is 60% and initial pressure…

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Q: Ammonia with MW=17, weighing 22kg is confirmed inside a cylinder equipped with a piston has initial…

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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.