A piston–cylinder device, whose piston is resting on a set of stops, initially contains 3 kg of air at 200 kPa and 27°C. The mass of the piston is such that a pressure of 400 kPa is required to move it. Heat is now transferred to the air until its volume doubles. Determine the work done by the air and the total heat transferred to the air during this process. Also show the process on a P-v diagram.

Q: A piston-cylinder device whose piston is resting on top of a set of stops initially contains 0.6 kg…

A: Given:The mass of the helium gas is m=0.6 kg.The initial pressure of the helium gas is P1=100…

Q: 10 lbm of ammonia (MW = 17), is heated inside a cylinder equipped with a piston. The initial…

A: Draw the P-V diagram and the T-S diagram. Here, 1 is the initial state of the system and 2 is the…

Q: A frictionless piston-cylinder device initially contains 200 L of saturated liquid refrigerant-…

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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: 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 spring-loaded piston-cylinder device contains 0.21 kg of water initially at 90°C and with an…

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Q: An insulated piston-cylinder device contains 200 L of air at 292 kPa and 25 °C. A paddle wheel…

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Q: A reciprocating cylinder contains water at a density of 0.01019 kg / liter at a pressure of 0.8 mpa.…

A: Given   Density = 0.01019 kg / liter                = 10.19 kg/m3 pressure = 0.8 MPa Find     The…

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: A piston-cylinder device initially contains 0.85 m³ of air at 109 kPa and 93°C. The air is now…

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Q: (4) A mass of 3 kg of R-134a fill a piston-cylinder device with and initial volume of 0.279 m³ at a…

A: Refrigerant R-134a, also known as 1,1,1,2-tetrafluoroethane, R-134a, Freon 134a, Forane 134a,…

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: 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: A cylinder-piston device contains 0.5 m3 of air at 150 kPa and 20 ° C. The gas is compressed in a…

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Q: Refrigerant-134a at 320 kPa and 40°C undergoes an isothermal process in a closed system until its…

A: To find :  The required magnitude of work  Given :  The pressure is  P1=320 kPa, The Temperature is…

Q: A piston cylinder device contains 0.850 kg of refrigerant-134a at -10.0°C. The piston that is e and…

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Q: A piston-cylinder device initially contains 0.65 m3 of saturated water vapor at 225 kPa. At this…

A: The P-V diagram of the process Given,

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: 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 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 rigid tank contains 5 kg of saturated liquid water at 30°C. The tank is heated to a final…

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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: Consider a closed piston cylinder that contains 0.2 kg of superheated water vapor at 200C and…

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Q: NOTE: This is a multi-part question. Once an answer is submitted, you will be unable to return to…

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Q: A piston-cylinder device initially contains 0.802 m³ of air at 108 kPa and 94°C. The air is now…

A: Given data: V1=0.802 m3P1=108 kPaT1=94°CV2=0.247 m3 Need to determine the work done during the…

Q: (a) The initial temperature of the refrigerant (oC), (b) The final volume of the refrigerant ( in…

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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 steam at 3.5 MPa, and 250°C. Steam loses heat to the…

A: The initial pressure is The initial temperature is The final temperature is

Q: A piston-cylinder device initially contains steam at 200 kPa, 200°C, and 0.4 m³. At this state, a…

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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: A 12-ft3 tank contains oxygen at 15 psia and 80◦F. A paddle wheel within the tank is rotated until…

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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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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

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.