A 5 kg of water is placed in a piston-cylinder device at 0.3 MPa, 1.5706 k/kgK. Weights are placed on the piston to maintain a constant force on the water as it is heated to 200°C. Calculate the work done. il) State whether the work done by a system or the work done on a system and why.

Q: A 10 kg mass of superheated R-134a at 1.88 MPa and 70°C is cooled at constant pressure until it…

A: Givensuperheated R-134a m=10kgP1=1.88MPaT1=70oCcooled at constant pressure ie. P2=P1=1.88MPa…

Q: A piston-cylinder assembly contains 0.1 kg of air at 300 kPa pressure and 270C temperature. First at…

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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: A piston-Cx at 400 Ĉ and 300 kpa Compressing the piston in Such that th, produa(p.v) der device…

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Q: A piston-cylinder device initially contains 1.3-kg saturated liquid water at 240°C. Now heat is…

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Q: isider a cylinder-piston configuration containing T0kg of water at 4MPa and The system undergoes a…

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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: In a thermodynamic process, pressure of a fixed mass of gas is changed in such a manner that the gas…

A: From the data given in question, The heat released by gas = ΔQ = -20 J (Heat released by the system…

Q: VCylinder-piston with linear spring mounted on the piston contains 1000g of liquid water at 25 C and…

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Q: A mass of gas is compressed in a quasi-static process from 80 kPa, 0.1 m³ to 0.4 MPa, 0.03 m³.…

A: As given in question, Initial pressure = P1 = 80 kPa Initial volume = v1 = 0.1 m3 Final pressure =…

Q: The energy required to raise the temperature of a unit mass of a substance by one degre, explain it.

A: The amount of energy that is required to raise the temperature of the unit mass of a substance by 1…

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

A: Ideal gas law               PV=mRT For a constant pressure process work was done by the gas,…

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 piston-cylinder set up contains 0.015 kg of an ideal gas at a volume of 1 liter, a temperature of…

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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: 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: A quantity of air at a pressure of 105 kN/m² and temperature of 25 °C is compressed according to the…

A: Given data: Pressure P1=105 kNm2 Temperature T1=25°C=25+273=298 K PV1.33=Constant Initial Volume…

Q: A mass of gas is compressed in a quasi-static process from 80 kPa, 0.1 m³ to 0.4 MPa, 0.03 m³.…

A: From the data given in question, Initial pressure = P1 = 80 kPa Initial volume = v1 = 0.1 m3 Final…

Q: Q2) Water is being heated in a closed insulated pan stirred by a paddle wheel. During the process…

A: Given data: -  The heat transfer is Q = 5000 J. The work done is W = 1.5 kJ. The initial internal…

Q: Air must be compressed in a well-insulated piston cylinder from a volume of 6.4 litres to a volume…

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Q: A cylinder contains fluid under pressure 700KN/m2. The process is done under constant pressure from…

A: Given :- Pressure ( P) = 700000 N/m2 Initial volume (v1)=0.25 m3 Final volume (v2)= 1.67 m3 To find…

Q: A 5-kg block of copper is heated from -100°C to 100°C. Determine the change of internal energy of…

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Q: hat is free to move has a mass of mp and a dia ressure is Patm. Now, heat is transferred to ref iven…

A: GivenMass of piston, mP= 11 kgdiameter of piston, dp=0.17 mmg=1.36 kg, T1=-9°C, T2=23°CPatm=89 kPa

Q: 2–96E A 2.4-in-diameter soap bubble is to be enlarged by blowing air into it. Taking the surface…

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Q: In a thermodynamic process, pressure of a fixed mass of gas is changed in such a manner that the gas…

A: As given in the question, Heat released by gas = ΔQ = -20 J (Heat released by system is considered…

Q: An enclosed chamber contains a gas that is cooled while stirred by a wheel. The work applied on he…

A: Given              Heat transfer, Q = 950 J                 Work done, W = - 950 J  Finalinternal…

Q: A rigid container contains saturated vapour at 1.6 bar.  The container is cooled by -440 KJ and the…

A: GivenP1=1.6barQ=-440kJP2=1bar

Q: 1. 8 kg of water has a quality of 0.5 at 100 kPa pressure. Heat is transferred to the system at…

A: Given:m=8 Kgx=0.5P=100 KPaT2=650°C

Q: Ms Png works on a piston-cylinder system which contains 0.05 m3 of nitrogen gas initially at 200…

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Q: An insulated piston-cylinder device initially contains 1.8 kg of Argon at 100 kPa and 300 K. Now an…

A: Given Data m=1.8 kg  P1=100 kPa  T1=300 K  V2=2.3V1

Q: changes in internal energy of the gas

A: Given; A gas contained in a cylinder is compressed the work required for compression=5000 kJheat…

Q: Q2: A vessel having a volume of 5 m³ contains 0.05 m³ of water and 4.95 m³ of saturated steam at 0.1…

A: Given data: P1=0.1 MPaV=5 m3Vw=0.05 m3Vsat=4.95 m3 Need to determine the heat transfer for this…

Q: Reservoir engineers transfer a crude oil with at 30 °C, and 9 kPa, and 200 m³ volume to tank by…

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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.