A piston–cylinder device contains 4 kg of argon at 250 kPa and 35°C. During a quasi-equilibrium, isothermal expansion process, 12 kJ of boundary work is done by the system, and 3 kJ of paddle-wheel work is done on the system. Determine the heat transfer for this process. (Round the final answer to the nearest whole number.) The heat transfer for this process is ................... kJ

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

A: please refer handwritten solution

Q: Gas at 70 bars gage pressure and 37.8°C is contained in a 12,900-cm3 cylinder. A piston compresses…

A: The gas gage pressure is = 70 barAtmospheric pressure is = 1.01325 barThe temperature is T1=37.8…

Q: A mass of 5 kg of saturated liquid-vapor mixture of water is contained in a piston- cylinder device…

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Q: A frictionless piston-cylinder device contains 4 kg of nitrogen at 100 kPa and 300 K. Nitrogen is…

A: Data given-  m = 4 kg  P1 = 100 kPa  T1 = 300 K  T2 = 340 K

Q: A piston-cylinder assembly contains 3 lb of water vapor, initially at 300F and 20 lbf/in2 is…

A: To find (a) The total work done during the process W. (b) The total change in entropy during the…

Q: takes 675 J of work to compress quasi- culate the temperature

A: we have to determine the temperature of a isothermal system undergoing compression

Q: QUESTION 1 (a) The air inside a 0.2 m² piston-cylinder device initially at 600 kPa. After heated up…

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Q: Consider a constant-charge piston-cylinder device that initially contains 0.1 kg of refrigerant-134a…

A: Given data: m1=0.1 kgT1=20°Cp1=60 kPaT2=80 °C

Q: Question 1: 4-20 A piston-cylinder device contains 0.15 kg of air initially at 2 MPa and 350°C. The…

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

A: m=10 lbm=4.53592 kgP1=63 psi=4.3437 barT1=50°F=283.15 KT2=100°F=310.928 K…

Q: Air, 5.37 kg, is compressed in a piston‑cylinder device from 91.3 kPa and 65.3 ∘C to 195.2 kPa in an…

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Q: Water, initially a saturated liquid at 100°C, is contained in a piston-cylinder assembly. The water…

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Q: 3. A room is to be heated by 1000 kg of a liquid contained in a tank placed in the room. The room is…

A: The mass of the liquid is m=1000 kg The final temperature of the liquid is Tf=25°C=298 K The heat…

Q: During isothermal process, the initial pressure and volume are 5 x 109 and 5000 mm3 respectively.…

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Q: As part of an experiment, you filled a weighted piston-cylinder device as shown in Figure 2 with 120…

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Q: Three 20.0 g ice cubes are dropped into 200 g of water in a thermally insulated container. If the…

A: Given data: Mass of ice cubes, mice=3×20 g=60 g Initial temperature of ice, Ti,ice=-18 °C. Ice cubes…

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: The heat transfer of gas during the process, in kJ. (2) The velocity of the piston at the final…

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Q: . Initially, 0.55 kg of air is contained in a piston-cylinder device at 2 MPa and 350°C. The air is…

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Q: Derive an equation for work done by the  system  during isothermal expansion process.

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Q: Before the widespread use of mechanical refrigeration, cooling was provided by ice, which was…

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Q: a) A basement refrigerator is used to store cool beverages during the long hot summer. The…

A: following is the answer to the above problem-

Q: A piston-cylinder device contains 2.2 kg of nitrogen initially at 100 kPa and 25°C. The nitrogen is…

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Q: A piston cylinder containing steam at 700 kPa and 250°C undergoes a constant pressure process until…

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Q: An aluminum bucket contains 0.800 kg of water at an equilibrium temperature of 25.0 °C. The water is…

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Q: A mass of ice at -7 C is needed to cool 224 kg of vegetables (Cp = 3.35 KJ /kg.K )in  a bunker for…

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Q: (Section B) A thermodynamic system contains piston-cylinder arrangement with 0.02 m³ of air at 50°C…

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Q: A 2.5 lbm of a gas and receives heat at constant pressure of 55 psia. The internal energy increases…

A: Given data m=2.5 lbm∆U=240 BTU∆T=120°FW=120 BTU

Q: Hi can you please help with this thermodynamics question? Please be very clear with the formulas…

A: Wp = -301.5 kJ/kg.k change in entropy = 0.7 kJ/kg.kExplanation:Approach to solving the question:…

Q: An auditorium which is 5m wide by 15m long and a ceiling of 3m. The initial air is maintained by air…

A: Given, V1 = 5 x 15 x 3 m3 =225 m3 P1 = 101.3 kPa =101.3 X 1000 Pa T1 = 22 °C = 22+273 = 295 K P2 =…

Q: A 0.15 kg of air contained in a piston-cylinder device where the initial pressure was 2000 kPa 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 container contains 14 lbm of refrigerant 134a at 180 psia with an internal energy…

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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: A piston-cylinder device initially contains 10L of liquid water at 35.5C and at a pressure of 0.582…

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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…

A: Given Data R-22 m=10 kg State 1:1.2 MPa, 70°C State 2:1.2 MPa, 20°C

Q: As the insulation around an adiabatic and frictionless piston-cylinder system is removed, 42500 J…

A: Given: The heat removed from the system Q=-42500 J. The initial volume is V1=400 dm3. The…

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.