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N C A gas in a piston-cylinder device is compressed, and as a result its temperature...
Air in a piston-cylinder device is compressed from 27°C and 100 kPa to 900 kPa by...
Air in a piston-cylinder device is compressed from 27°C and 100 kPa to 900 kPa by following a process with Pv14-const. If air is considered as ideal gas, please determine: (1) The air temperature after compression, (2) The heat transfer into or out of the system
Consider a piston-cylinder device (system) that contains 0.06 m3 of air at 300 kPa and 125...
Consider a piston-cylinder device (system) that contains 0.06 m3 of air at 300 kPa and 125 ̊C. (a) If the volume of air in the device increases to 0.15 m3 while the pressure remains constant, determine the work done by the system during the process. (b) If as a result of heat transfer to the surrounding, the pressure and temperature in the device drop to 240 kPa and 55 ̊C, respectively, and the piston is held such that the volume...
Air is being compressed in a piston-cylinder device in a reversible and adiabatic manner. During the...
Air is being compressed in a piston-cylinder device in a reversible and adiabatic manner. During the process both the temperature and pressure of the gas increase, while the volume is decreasing. If the initial volume and temperature of the air are 3 m3 and 13 °C, respectively, and the final volume is measured to be 0.3 m3, the final temperature of the air is
An insulated piston-cylinder device contains 0.1m3 of air (ideal gas) at 400 kPa and 25℃. A...
An insulated piston-cylinder device contains 0.1m3 of air (ideal gas) at 400 kPa and 25℃. A paddle wheel within the cylinder is rotated until 15 kJ of work is done on the air while the pressure is held constant. Assuming the kinetic and potential energies are negligible and the gas constant and specific heat of air are ? = 0.287 kJ kg∙K and ?? = 1.005 kJ kg∙K . Tasks: ( a ) Determine the mass of air inside the...
A piston cylinder device contains air with a volume of 0.05 m3 at 25oC and 100...
A piston cylinder device contains air with a volume of 0.05 m3 at 25oC and 100 kPa pressure. The gas is now compressed to a final temperature of 95oC at 250 kPa. This compression is polytropic and follows PVn=constant. a. Determine how much boundary work was added to the gas [in kJ] b. How much heat was added or removed from this system during this process? [in kJ]
Problem #4: Air is compressed in a piston cylinder from 1 bar, 17 °C such that...
Problem #4: Air is compressed in a piston cylinder from 1 bar, 17 °C such that the "2-30% v1 Assume polytropic compression with n - 1.3, negligible kinetic and potential energy changes, and ideal gas behavior. Determine the following. (a) the temperature of the exiting air, in °C; (b) the work and heat transfer, in kJ/kg (c) the entropy generated, in kJ/kgK, if heat transfer takes place at 520 K; (d) Also sketch the process on p-v and T-s diagrams...
A reversible compression of 1 mol of an ideal gas in a piston/cylinder device result in...
A reversible compression of 1 mol of an ideal gas in a piston/cylinder device result in a pressure increase from 1 bar to P_2 and a temperature increase from 400 K to 950 K. The path followed by the gas during compression is given by PV^1.55 = const, and the molar heat capacity of the gas is given by C_p/R = 3.85+0.57 time sign 10^-3T [T/K] Determine the heat transferred during the process and the final pressure.
3.3lbm of air is contained in a piston cylinder device at 19.4psia and 76.6oF. The air...
3.3lbm of air is contained in a piston cylinder device at 19.4psia and 76.6oF. The air is compressed until the pressure reaches 81.1psia. During the process, heat is transferred from the air such that the temperature remains constant. Calculate the boundary work, in BTUs. Also, sketch this process on a P-v diagram.
A gas is contained in a vertical, frictionless piston-cylinder device. The piston has a mass of...
A gas is contained in a vertical, frictionless piston-cylinder device. The piston has a mass of 3.2 kg and a cross-sectional area of 35 cm2. A compressed spring above the piston exerts a force of 110 N on the piston. If the atmospheric pressure is 95 kPa, determine the pressure inside the cylinder. The pressure inside the cylinder is _______ kPa.
Air is compressed isentropically from 100 kPa and 27°C to 2550 kPa in a piston-cylinder device....
Air is compressed isentropically from 100 kPa and 27°C to 2550 kPa in a piston-cylinder device. Determine its final temperature using exact analysis A. Close to 740 °C B. Close to 467 °C C. 483.81 °C D. 68.14 °C
Air in a piston-cylinder device is compressed from 27°C and 100 kPa to 900 kPa by following a process with Pv14-const. If air is considered as ideal gas, please determine: (1) The air temperature after compression, (2) The heat transfer into or out of the system
Problem #4: Air is compressed in a piston cylinder from 1 bar, 17 °C such that the "2-30% v1 Assume polytropic compression with n - 1.3, negligible kinetic and potential energy changes, and ideal gas behavior. Determine the following. (a) the temperature of the exiting air, in °C; (b) the work and heat transfer, in kJ/kg (c) the entropy generated, in kJ/kgK, if heat transfer takes place at 520 K; (d) Also sketch the process on p-v and T-s diagrams...
A reversible compression of 1 mol of an ideal gas in a piston/cylinder device result in a pressure increase from 1 bar to P_2 and a temperature increase from 400 K to 950 K. The path followed by the gas during compression is given by PV^1.55 = const, and the molar heat capacity of the gas is given by C_p/R = 3.85+0.57 time sign 10^-3T [T/K] Determine the heat transferred during the process and the final pressure.
Air is compressed isentropically from 100 kPa and 27°C to 2550 kPa in a piston-cylinder device. Determine its final temperature using exact analysis A. Close to 740 °C B. Close to 467 °C C. 483.81 °C D. 68.14 °C
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