Air contained within a piston-cylinder assembly is slowly
heated. As shown below, during this process the pressure first
varies linearly with volume and then remains constant. Determine
the total work, in kJ. 
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Air contained within a piston-cylinder assembly is slowly
heated. As shown below, during this process the...
As shown in the figure below, a gas contained within a piston-cylinder assembly, initially at a...
As shown in the figure below, a gas contained within a piston-cylinder assembly, initially at a volume of 0.1 m3, undergoes a constant-pressure expansion at p 2 bar to a final volume of V2 0.2 m3, while being slowly heated through the base. The change in internal energy of the gas is 0.25 kJ. The piston and cylinder walls are fabricated from heat-resistant material, and the piston moves smoothly in the cylinder. The local atmospheric pressure is 1 bar. Piston-...
Problem 2. As shown in the figure, a gas contained within a piston-cylinder assembly, initially at...
Problem 2. As shown in the figure, a gas contained within a piston-cylinder assembly, initially at a volume of 0.1 m3, undergoes a constant-pressure expansion at 2 bar to a final volume of 0.12 m3, while being slowly heated through the base. The change in internal energy of the gas is 0.25 kJ. The piston and cylinder walls are fabricated fronm heat-resistant material, and the piston moves smoothly in the cylinder. The local atmospheric pressure is 1 bar. (a) For...
Thermodynamics 5. 0.5kg of ammonia is contained in a piston-cylinder assembly, initially at Ti-20°C and a...
Thermodynamics
5. 0.5kg of ammonia is contained in a piston-cylinder assembly, initially at Ti-20°C and a quality of 25%. As the ammonia is slowly heated to a final state, where T2 20°C, P2 = 0.6MPa, its pressure varies linearly with specific volume. For the ammonia, (a) show the process on a P o diagram and (b) evaluate the work and heat transfer, each in kJ.
Question 1 Air is contained in a vertical piston-cylinder assembly fitted with an electrical heater. The...
Question 1 Air is contained in a vertical piston-cylinder assembly fitted with an electrical heater. The atmospheric pressure is 100 kPa and piston has a mass of 50 kg and a face area of 0.1 m . Electric current passes through the heater, and the volume of air slowly increases by 0.045 m. The mass of the air is 0.3 kg and its specific internal energy increases by 42.2 kJ/kg. Assume the assembly (including the piston) is insulated and neglect...
Question Two (10 Marks] Air is contained in vertical piston-cylinder assembly fitted with an electrical resistor....
Question Two (10 Marks] Air is contained in vertical piston-cylinder assembly fitted with an electrical resistor. The atmosphere exerts a pressure of 1 bar on the top of the piston, which has a mass of 45 kg and a face area of 0.09 m². Electric current passes through the resistor, and the volume of the air slowly increases by 0.45 m while its pressure remains constant. The mass of the air is 0.27 kg. and its specific internal energy increases...
1.Water vapor contained in a piston–cylinder assembly undergoes an isothermal expansion at 277°C from a pressure...
1.Water vapor contained in a piston–cylinder assembly undergoes an isothermal expansion at 277°C from a pressure of 5.1 bar to a pressure of 2.7 bar. Evaluate the work, in kJ/kg. 2.Nitrogen (N2) contained in a piston–cylinder arrangement, initially at 9.3 bar and 437 K, undergoes an expansion to a final temperature of 300 K, during which the pressure–volume relationship is pV1.1 = constant. Assuming the ideal gas model for the N2, determine the heat transfer in kJ/kg. 3.Argon contained in...
finding work and heat transfer given a piston-cylinder assembly
As shown in Fig. P2.56, a gas contained within a piston–cylinder assembly, initially at a volume of 0.1 m3, undergoesa constant-pressure expansion at 2 bar to a final volume of0.12 m3, while being slowly heated through the base. Thechange in internal energy of the gas is 0.25 kJ. The pistonand cylinder walls are fabricated from heat-resistant material,and the piston moves smoothly in the cylinder. The localatmospheric pressure is 1 bar.(a) For the gas as the system, evaluate work and heat...
Five kg of water is contained in a piston–cylinder assembly, initially at 5 bar and 200°C....
Five kg of water is contained in a piston–cylinder assembly, initially at 5 bar and 200°C. The water is slowly heated at constant pressure to a final state. The heat transfer for the process is 3260 kJ and kinetic and potential energy effects are negligible. Determine the final volume, in m3, and the work for the process, in kJ.
A piston–cylinder assembly contains ammonia, initially at a temperature of -20°C and a quality of 40%....
A piston–cylinder assembly contains ammonia, initially at a temperature of -20°C and a quality of 40%. The ammonia is slowly heated to a final state where the pressure is 6 bar and the temperature is 100°C. While the ammonia is heated, its pressure varies linearly with specific volume. For the ammonia, determine the work and heat transfer, each in kJ/kg.
A piston-cylinder assembly contains ammonia, initially at a temperature of -20°C and a quality of 70%....
A piston-cylinder assembly contains ammonia, initially at a temperature of -20°C and a quality of 70%. The ammonia is slowly heated to a final state where the pressure is 6 bar and the temperature is 160°C. While the ammonia is heated, its pressure varies linearly with specific volume. For the ammonia, determine the work and heat transfer, each in kJ/kg.
As shown in the figure below, a gas contained within a piston-cylinder assembly, initially at a volume of 0.1 m3, undergoes a constant-pressure expansion at p 2 bar to a final volume of V2 0.2 m3, while being slowly heated through the base. The change in internal energy of the gas is 0.25 kJ. The piston and cylinder walls are fabricated from heat-resistant material, and the piston moves smoothly in the cylinder. The local atmospheric pressure is 1 bar. Piston-...
Problem 2. As shown in the figure, a gas contained within a piston-cylinder assembly, initially at a volume of 0.1 m3, undergoes a constant-pressure expansion at 2 bar to a final volume of 0.12 m3, while being slowly heated through the base. The change in internal energy of the gas is 0.25 kJ. The piston and cylinder walls are fabricated fronm heat-resistant material, and the piston moves smoothly in the cylinder. The local atmospheric pressure is 1 bar. (a) For...
Thermodynamics
5. 0.5kg of ammonia is contained in a piston-cylinder assembly, initially at Ti-20°C and a quality of 25%. As the ammonia is slowly heated to a final state, where T2 20°C, P2 = 0.6MPa, its pressure varies linearly with specific volume. For the ammonia, (a) show the process on a P o diagram and (b) evaluate the work and heat transfer, each in kJ.
Question 1 Air is contained in a vertical piston-cylinder assembly fitted with an electrical heater. The atmospheric pressure is 100 kPa and piston has a mass of 50 kg and a face area of 0.1 m . Electric current passes through the heater, and the volume of air slowly increases by 0.045 m. The mass of the air is 0.3 kg and its specific internal energy increases by 42.2 kJ/kg. Assume the assembly (including the piston) is insulated and neglect...
Question Two (10 Marks] Air is contained in vertical piston-cylinder assembly fitted with an electrical resistor. The atmosphere exerts a pressure of 1 bar on the top of the piston, which has a mass of 45 kg and a face area of 0.09 m². Electric current passes through the resistor, and the volume of the air slowly increases by 0.45 m while its pressure remains constant. The mass of the air is 0.27 kg. and its specific internal energy increases...
A piston-cylinder assembly contains ammonia, initially at a temperature of -20°C and a quality of 70%. The ammonia is slowly heated to a final state where the pressure is 6 bar and the temperature is 160°C. While the ammonia is heated, its pressure varies linearly with specific volume. For the ammonia, determine the work and heat transfer, each in kJ/kg.
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