THERMOFLUID Air is contained in a cylinder device fitted with a piston-cylinder. The piston initially rests on a set of stops, and a pressure of 200 kPa is required to move the piston. Initially, the air is at 100 kPa and 23°C and occupies a volume of 0.25 m2. Determine the amount of heat transferred to the air, in KJ, while increasing the temperature to 700 K. Assume air has constant s

Q: A paddle wheel supplies 236 kJ of work to the air contained in a 0.5 m3 insulated rigid volume, the…

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Q: A frictionless piston-cylinder device contains 3L of saturated liquid water at a pressure of 200…

A: Given:V=3 LP=200 KPat=22 min i=7.5 AV=160 V

Q: Subcooled water at 5°C is pressurised to 350 kPa with no increase in temperature, and then passed…

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Q: 6- A mass of 1.2 kg of air at 150 kPa and 12 C is contained in a piston- cylinder device. The air…

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Q: B. Calculate the work necessary to compress air in an insulated cylinder from a volume of 0.1699 m³…

A: Given:V1=0.1699 mV2=0.03398 m3T=10°CP=206.842 kPak=1.4

Q: 5.0 kg of steam at 0.7 MPa and 250°C enters a pipeline and flows steadily along it at constant…

A: By using the properties of steam table The enthalpy of the steam at the pressure of 0.7 MPa and…

Q: Syringe device that is equipped with piston and fixed points functioning as stopper are filled with…

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Q: A piston-cylinder device initially contains 0.4 m^3 of saturated water vapor at a pressure of 200…

A: vapor pressure = 200kPa loss pf heat = 10kJ PRESSURE RISES TO = 300KPA

Q: A constant volume container initially contains 13 kg of air at a temperature of 20 °C and a pressure…

A: ideal gas An ideal gas is a theoretical gas composed of many randomly moving point particles that…

Q: Required information A piston-cylinder device contains 0.82 kg of refrigerant-134a at -10°C. The…

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Q: An automobile tire initially contains 0.12 kg of air at 250 kPag and 22°C. Assume that the tire does…

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Q: A 0.5m³ rigid tank containing hydrogen at 20°C and 600 kPa is connected by a valve to another 0.5m³…

A: given : VA = 0.5 m3 TA = 20⁰C = 293 K PA = 600 kPa   VB = 0.5 m3 TB = 30 ⁰C = 303 K PB = 150 kPa…

Q: A heat-insulated (adiabatic) constant volume vessel divided by a metal curtain. The volume of the…

A: Given: m = 2.5 kg T1=60oC P1=600Kpa P2=10Kpa

Q: As shown in the figure, a piston-cylinder assembly with a stopper contains R-410A, a refrigerant at…

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Q: Shown in the figure, an insulated rigid tank is divided into two equal parts by a partition.…

A: Giveninsulated tankm=4kgP1=600kPaT1=300KR=0.287 kJ/kgKCv=0.7180 kJ/kgK∆U=mCvT2-T1

Q: Subcooled water at 5°C is pressurised to 350 kPa with no increase in temperature, and then passed…

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Q: An insulated piston-cylinder device contains 4 L of saturated liquid water at a constant pressure of…

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Q: A frictionless piston-cylinder device contains 2.5 kg of nitrogen at 100 kPa and 250 K. Nitrogen is…

A: According to the given dataThe mass of nitrogen is m = 2.5 kgThe initial pressure is P1 = 100 kPaThe…

Q: Refrigerant-134a enters an adiabatic compressor at -26°C as a saturated vapor at a rate of 0.45…

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Q: A frictionless piston-cylinder device contains 3 L of saturated liquid water at a temperature of…

A: Given:V1=3 L=0.003 m3T1=110°C   saturated liquidt=22 min i=7.5 AV=160 V

Q: 0.05 kg of steam at 5 bar is contained in a rigid vessel of volume 0.0076m³. What is the temperature…

A: Given:m=0.05 KgP=5 barV=0.0076 m3From steam table at P=5 bar:Tsat=424.986 KLatent heat, L.H.=2107.92…

Q: A closed cylinder is divided into two parts by a friction-free piston restricted from motion by a…

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Q: Calculate the decrease in available energy when 25 kg of water at 95°C mixes with 35 kg of water at…

A: Available energy of a system of mass m, specific heatCp, and at temperature T, is given by:…

Q: a reciprocating compressor 0.1 m3 of air at 0.95 bar and 32°C is compressed according to PVn…

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Q: While the piston is pinned, a cylinder with a volume of 0.05 m3 contains 200 kPa pressure and 300 K…

A: Given: Initial temperature (T1)=300KInitial pressure (P1)=200kPaInitial volume (V1)=0.05m3Pressure…

Q: The marine water strider, Halobates, has a mass of 0.33 g.(Figure 1) Figure Part A If it has six…

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Q: It is insulated against heat, except for a cylinder base B with a volume of 100 liters. This…

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Q: ened, and helium is allowed to flow into the tank until the pressure reaches 200 k re (in K) of the…

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Q: Consider a sealed, rigid container of 10 kg of water vapor at 25°C and 80 kPa. A paddle wheel with a…

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Q: (5) An insulated piston-cylinder device contains 15 L of saturated liquid water at a constant…

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Q: 1.16 A 0.5-lbm of R134a at 100 psia pressure initially at 40°F is heated until 50% of mass is…

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Q: An exhaust gas at 1.2 MPa and 660 K is expanded in an adiabatic turbine to a final pressure of 161…

A: Given:- At inlet of turbine:-P1=1.2MPa=1200 kPa,T1=660K,Inlet area,Ainlet=0.2 m2,Velocity of gas…

Q: Plot DSa and DSw as functions of Tw on a single graph. Plot DSsys [DSsys = DSa +DSw] as functions of…

A: the graphs are in last two pages i solved whole question

Q: Water is heated with the aid of a diesel furnace. 2kg of diesel fuel is required for every 300…

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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.