The volume of 1 kg of helium in a piston–cylinder device is initially 5 m3 . Now helium is compressed to 2 m3 while its pressure is maintained constant at 130 kPa. Determine the initial and final temperatures of helium as well as the work required to compress it, in kJ.

Q: Air is cooled during an isobaric process at 5.43 atm from an initial specific volume of 1.51 m³/kg…

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Q: arrangement contains 0.24-kg nitrogen and receives 11.806 kJ of heat isothermally. The initial…

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Q: 29.706 kg per second of water at 0.03398675 kbarg and internal energy of 15000 kW is heated at…

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Q: piston-cylinder arrangemen

A: SOLUTION GIVEN BELOW.

Q: Air at 2000 K with a specific volume of 0.6 m3/kg is expanded isentropically until the temperature…

A: Temperature at initial, T1 = 2000 KThe specific volume of air at initial, v1 = 0.6 m3/kgFinal…

Q: A piston cylinder contains 0.64 kg of air initially at 450 kPa and 225 °C, now the air expands in a…

A: Given Data  Mass of the air, m=0.64Kg T1=225°C T2=25°C P1=450 KPa P2=100 KPa.…

Q: A- One kg of steam with a quality of 21% is heated at a constant pressure of 201 kPa. The work done…

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Q: A Piston-cylinder containing 300 lit of steam at 700 kPa and 250oC undergoes a constant pressure…

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Q: A piston-cylinder device contains 5-kg saturated water liquid @ 150C. Now water is heated at…

A: given data  mass m = 5  kg saturated water liquid temperature T =150°C According to the steam table…

Q: A rigid tank initially contains saturated vapor at 0.45 MPa. Then heat transferred to water until…

A: Given        Initial Pressure, P1 = 0.45 MPa  Final Temperature, T1 = 350oC

Q: Saturated vapor at 55°C is put under pressure to decrease the volume by one percent during an…

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Q: A 10-kg mass of superheated refrigerant(R-22) at 1.2 MPa and 70°C is cooled at constant pressure…

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Q: 25.995 kg per second of water at 0.03398675 kbarg and internal energy of 15000 kW is heated at…

A: Given that: Mass flow rate of the water = 25.995 kg/s Pressure = 0.03398675 kbarg = 35 bar Internal…

Q: The state of liquid water is changed from 50 psia and 50°F to 2000 psia and 100°F. Determine the…

A: Given Initial pressure Pi = 50 psia Initial temperature Ti = 50o F Final pressure Pf = 2000 psia…

Q: Determine internal energy of steam if its enthalpy, pressure and specific  volumes are 2848 kJ/kg,…

A: Given data h=2848 kJ/kgP=12 MPav=0.017 m3/kg Here, h is the enthalpy, P is the pressure and v is the…

Q: A square piece is initially at 10 degrees Celsius everywhere. Each side is 0.05 m long. Then the…

A: To solve this problem, we can use the heat equation to model the temperature distribution in the…

Q: A piston-cylinder device initially contains 0.4 kg of nitrogen gas at 160 kPa and 140°C. The…

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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: A quantity of ideal gas occupies 0.5 m3 at 5oC and 165 kPa. It is compressed in accordance with the…

A: Given   Initial      Pressure, P1 = 165 kPa       Volume, V1 = 0.5 m3 Final      Pressure, P2 = 350…

Q: The initial conditions of 0.8 kg of carbon dioxide inside a piston-cylinder device are 300°C and The…

A: Given:mass of cabon dioxide, m=0.8 kginitial pressure, P1=100 kPainitial temperature, T1=300o C or…

Q: 1-kg of water that is initially at 90 °C with a quality of 0.1 occupies a spring-loaded…

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Q: A piston-cylinder device initially contains 0.4 m³ of air at 100 kPa and 80°C. The air is now…

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Q: A vertical piston-cylinder assembly containing 0.3 Kg of steam, initially a vapor, is placed on a…

A: Initially, the mass of steam is m=0.3 kg. The initial pressure is P1=20 bar The vapor is saturated…

Q: Consider a piston-cylinder device that initially contains saturated water vapor. Heat is then added…

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Q: A quantity of ideal gas occupies 0.5 m3 at 5oC and 165 kPa. It is compressed in accordance with the…

A: To find : The heat transfer during the process. Given data : The Initial volume is V1=0.5 m3. The…

Q: A rigid tank initially contains saturated vapor at 0.6 MPa. Then heat transferred to water until its…

A: Given data, Initially the vapor is saturated vapor at 0.6 MPa pressure. Finally the temperature of…

Q: A piston-cylinder device contains 0.2-kg of H20 as saturated vapor at 400 kPa. In a constant…

A: Given : Mass (m) = 0.2 kg Pressure saturated vapour= 400 kPa    To Find :-  Work done on the system=…

Q: 27.745 kg per second of water at 0.03398675 kbarg and internal energy of 15000 kW is heated at…

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Q: A 7.57-m rigid tank contains 0.546 kg of H,O at 37.8°C. The H,0 is then heated to 204.4°C. Determine…

A: Volume of the tank, V=7.57 m3mass of H2O , m=0.546 kgTemperature of H2O , T1=37.8o Cfinal…

Q: A piston-cylinder device initially contains 1 kg saturated liquid water at 200°C. Now heat is…

A: Introduction The specific volume term is defined as the ratio of volume to the mass, for the…

Q: A frictionless piston-cylinder device and a rigid tank contain 2 kmol of an ideal gas at the same…

A: GIVEN DATA - Rigid tank contain 2kmol of ideal gas Temprature difference =10'C concept used- ideal…

Q: A piston-cylinder device initially contains 0.877 m³ of air at 112 kPa and 82°C. The air is now…

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Q: Air is in a piston-cylinder device initially at 800 psia and 2500°F. The air is now expanded such…

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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.