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4. A piston-cylinder device contains 0.8 kg and 1 m' of an ideal gas whose molar...
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 0.78 kg of nitrogen gas at 140 kPa and 37°C. The gas...
A piston-cylinder device contains 0.78 kg of nitrogen gas at 140 kPa and 37°C. The gas is now compressed slowly in a polytropic process during which PV1.3 = constant. The process ends when the volume is reduced by one-half. Determine the entropy change of nitrogen during this process. The gas constant of nitrogen is R= 0.2968 kJ/kg-K. The constant volume specific heat of nitrogen at room temperature is Cr=0.743 kJ/kg-K. (Round the final answer to five decimal places.) The entropy...
A piston-cylinder device contains 0.63 kg of nitrogen gas at 140 kPa and 37°C. The gas...
A piston-cylinder device contains 0.63 kg of nitrogen gas at 140 kPa and 37°C. The gas is now compressed slowly in a polytropic process during which PV1.3. constant. The process ends when the volume is reduced by one-halt. Determine the entropy change of nitrogen during this process. The gas constant of nitrogen is R-0.2968 kJ/kg K. The constant volume specific heat of nitrogen at room temperature is C -0.743 kJ/kg K. (Round the final answer to five decimal places.) The...
ideal gas law questions Movable piston A cylinder contains an ideal gas that is at room...
ideal gas law questions
Movable piston A cylinder contains an ideal gas that is at room temperature. The cylinder is sealed with a piston of mass M and cross-sectional area A that is free to move up or down without friction. No gas can enter or leave the cylinder. The piston is at rest. Atmospheric pressure (i.e. the pressure of the air surrounding the cylinder) is P. a. In the space provided, draw a free-body diagram for the piston. Ideal...
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.
A piston-cylinder assembly initially contains 0.8 kg of air at 100 kPa and 300 K. It...
A piston-cylinder assembly initially contains 0.8 kg of air at 100 kPa and 300 K. It is then compressed in a polytropic process PV3 = C to half the original volume. Assuming the ideal gas model for air and specific heat ratio is constant, k=1.4, determine (a) the final temperature, (b) work and heat transfer, each in kJ. R= 0.287 kJ/kg K. W, 82
a piston -cylinder device contains 2.5 Kg of carbon dioxide (CO2 ) initially at 100 KPa...
a piston -cylinder device contains 2.5 Kg of carbon dioxide (CO2 ) initially at 100 KPa and 300o C. The carbon dioxide is then compressed to 200 kPa following a process of Pv1.25 =constant. Determine (A) the boundary worked needed for the process (B) The temperature after compression . use Ideal gas state and Pressure in absolute pressure ; R=0.1889 KJ/Kg-K
Check my work 6 10 A piston-cylinder device contains 0.63 kg of nitrogen gas at 140...
Check my work 6 10 A piston-cylinder device contains 0.63 kg of nitrogen gas at 140 kPa and 37°C. The gas is now compressed slowly in a polytropic process during which PV1.3 = constant. The process ends when the volume is reduced by one-half. Determine the entropy change of nitrogen during this process. The gas constant of nitrogen is R = 0.2968 kJ/kg.K. The constant volume specific heat of nitrogen at room temperature is cy" 0.743 kJ/kg.K. (Round the final...
2. (5 Points) 3-kg of air (an ideal gas) is heated in a piston-cylinder device from...
2. (5 Points) 3-kg of air (an ideal gas) is heated in a piston-cylinder device from 17°C to 117°C at a constant pressure of 100 kPa. Determine the entropy change in kJ/K, assuming: a. Constant specific heat. b. Variable specific heat.
4). A piston cylinder device whose piston is resting on a set of stops contains 2kg...
4). A piston cylinder device whose piston is resting on a set of stops contains 2kg of Helium initially at 27°C and 100 kPa. The mass of the piston plus the atmospheric pressure effects is such that 500 kPa of gas pressure is required to raise it. Determine how much heat must be transferred to the helium to start raising? For He: R 2.0769 J/kg K C,-3.1156 kJkgK C,-5.1926 kJkg.K
A piston-cylinder device contains 0.78 kg of nitrogen gas at 140 kPa and 37°C. The gas is now compressed slowly in a polytropic process during which PV1.3 = constant. The process ends when the volume is reduced by one-half. Determine the entropy change of nitrogen during this process. The gas constant of nitrogen is R= 0.2968 kJ/kg-K. The constant volume specific heat of nitrogen at room temperature is Cr=0.743 kJ/kg-K. (Round the final answer to five decimal places.) The entropy...
A piston-cylinder device contains 0.63 kg of nitrogen gas at 140 kPa and 37°C. The gas is now compressed slowly in a polytropic process during which PV1.3. constant. The process ends when the volume is reduced by one-halt. Determine the entropy change of nitrogen during this process. The gas constant of nitrogen is R-0.2968 kJ/kg K. The constant volume specific heat of nitrogen at room temperature is C -0.743 kJ/kg K. (Round the final answer to five decimal places.) The...
ideal gas law questions
Movable piston A cylinder contains an ideal gas that is at room temperature. The cylinder is sealed with a piston of mass M and cross-sectional area A that is free to move up or down without friction. No gas can enter or leave the cylinder. The piston is at rest. Atmospheric pressure (i.e. the pressure of the air surrounding the cylinder) is P. a. In the space provided, draw a free-body diagram for the piston. Ideal...
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.
A piston-cylinder assembly initially contains 0.8 kg of air at 100 kPa and 300 K. It is then compressed in a polytropic process PV3 = C to half the original volume. Assuming the ideal gas model for air and specific heat ratio is constant, k=1.4, determine (a) the final temperature, (b) work and heat transfer, each in kJ. R= 0.287 kJ/kg K. W, 82
Check my work 6 10 A piston-cylinder device contains 0.63 kg of nitrogen gas at 140 kPa and 37°C. The gas is now compressed slowly in a polytropic process during which PV1.3 = constant. The process ends when the volume is reduced by one-half. Determine the entropy change of nitrogen during this process. The gas constant of nitrogen is R = 0.2968 kJ/kg.K. The constant volume specific heat of nitrogen at room temperature is cy" 0.743 kJ/kg.K. (Round the final...
2. (5 Points) 3-kg of air (an ideal gas) is heated in a piston-cylinder device from 17°C to 117°C at a constant pressure of 100 kPa. Determine the entropy change in kJ/K, assuming: a. Constant specific heat. b. Variable specific heat.
4). A piston cylinder device whose piston is resting on a set of stops contains 2kg of Helium initially at 27°C and 100 kPa. The mass of the piston plus the atmospheric pressure effects is such that 500 kPa of gas pressure is required to raise it. Determine how much heat must be transferred to the helium to start raising? For He: R 2.0769 J/kg K C,-3.1156 kJkgK C,-5.1926 kJkg.K
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