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Check my work 6 10 A piston-cylinder device contains 0.63 kg of nitrogen gas at 140...
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...
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...
(20 points) A piston cylinder device contains 3kg of nitrogen initially at 250k Pa and 50C....
(20 points) A piston cylinder device contains 3kg of nitrogen initially at 250k Pa and 50C. The nitrogen is now compressed slowly in a polytropic process during which PV1.3= constant until the volume is reduced by one half. Determine the work done and the heat transfer for this process. Use R=0.298kJ/kgK and c = 0.744k.J/kgK
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]
Nitrogen in a piston cylinder device occupies 0.5 m3 at 100 kPa and 20 °C. It undergoes a compres...
Nitrogen in a piston cylinder device occupies 0.5 m3 at 100 kPa and 20 °C. It undergoes a compression process (during which PV1.30-constant) to a final state where the temperature is 200 °C. The specific heats are assumed to be constant while Tsur - 15 C a) Prove that the gas, at state 1, can be treated as an ideal gas. b) Find the pressure and volume at state 2 c) Find the heat transfer, in kJ. d) Find the...
A gas in a cylinder piston system occupies V, - 15 mºat P. = 220 kPa...
A gas in a cylinder piston system occupies V, - 15 mºat P. = 220 kPa and T, -20°C. Then, the gas undergoes a polytropic compression process until its temperature becomes T, 300'C. The entropy change of the gas during this process is AS - -1.7626 kJ/K, (AS-S.-5.). By assuming ideal gas (R = 0.3 kJ/kg.K. cp = 0.8 kJ/kg.K. cv = 0.5 kJ/kg.K), determine: 3pt) the mass of the gas, m (kg) = (9pt) the work transfer, W (kl)...
(6). (12 points) A piston-cylinder device contains 0.25 kg of air initially at 1.8 MPa and...
(6). (12 points) A piston-cylinder device contains 0.25 kg of
air initially at 1.8 MPa and 360 °C. The air is first expanded
isothermally to 400 kPa, then compressed polytropically, with a
polytropic exponent of 1.2 to the initial pressure, and finally
compressed at the constant pressure to the initial state. Pease
find: (a) (3p) The boundary work for the isothermal expansion
process. (b) (3p) The boundary work for the polytropic compression
process. (c) (3p)The boundary work for the constant...
A mixture of 0.3 kg of Carbon Dioxide and 1.7 kg of Nitrogen contains in a...
A mixture of 0.3 kg of Carbon Dioxide and 1.7 kg of Nitrogen contains in a piston - cylinder device is compresiod fom 100kPa 2/C to 300kPa i a Poly'topic process. The Polytropic constant n-1.3. Assume constant specific heats at average temperature, determine a) The mole fraction of each component in the gas [6 Marks] b) The final temperature after compression. mixture. [8 Marks] c) The specific heats, Cp and Cv of the mixture.(in kJ/kg.K) d) The gas constant of...
Two kg of air as an ideal gas with constant properties expands inside a piston-cylinder device...
Two kg of air as an ideal gas with constant properties expands inside a piston-cylinder device from an initial state where P. - 200 kPa. T-7°C to a state where P2 - 100 kPa and T2- 327° (Assume cp = 1.003 kJ/Kg.K.cv -0.716 kJ/kg.K. and R=0.287 kJ/Kg.K). 3. The change in internal energy, in kJ, between the specified states is most nearly: -483 460 - 166 -241 -322 120 . 231 144
A piston-cylinder device initially contains 0.07 m3 of nitrogen gas at 130 kPa and 120 degrees...
A piston-cylinder device initially contains 0.07 m3 of nitrogen gas at 130 kPa and 120 degrees celcius. The nitrogen is now expanded polytropically to a state of 100 kPa and 100 degrees celcius. Determine the boundary work done during this process. Step by step solutions with basic explanations
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...
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...
(20 points) A piston cylinder device contains 3kg of nitrogen initially at 250k Pa and 50C. The nitrogen is now compressed slowly in a polytropic process during which PV1.3= constant until the volume is reduced by one half. Determine the work done and the heat transfer for this process. Use R=0.298kJ/kgK and c = 0.744k.J/kgK
Nitrogen in a piston cylinder device occupies 0.5 m3 at 100 kPa and 20 °C. It undergoes a compression process (during which PV1.30-constant) to a final state where the temperature is 200 °C. The specific heats are assumed to be constant while Tsur - 15 C a) Prove that the gas, at state 1, can be treated as an ideal gas. b) Find the pressure and volume at state 2 c) Find the heat transfer, in kJ. d) Find the...
A gas in a cylinder piston system occupies V, - 15 mºat P. = 220 kPa and T, -20°C. Then, the gas undergoes a polytropic compression process until its temperature becomes T, 300'C. The entropy change of the gas during this process is AS - -1.7626 kJ/K, (AS-S.-5.). By assuming ideal gas (R = 0.3 kJ/kg.K. cp = 0.8 kJ/kg.K. cv = 0.5 kJ/kg.K), determine: 3pt) the mass of the gas, m (kg) = (9pt) the work transfer, W (kl)...
(6). (12 points) A piston-cylinder device contains 0.25 kg of
air initially at 1.8 MPa and 360 °C. The air is first expanded
isothermally to 400 kPa, then compressed polytropically, with a
polytropic exponent of 1.2 to the initial pressure, and finally
compressed at the constant pressure to the initial state. Pease
find: (a) (3p) The boundary work for the isothermal expansion
process. (b) (3p) The boundary work for the polytropic compression
process. (c) (3p)The boundary work for the constant...
A mixture of 0.3 kg of Carbon Dioxide and 1.7 kg of Nitrogen contains in a piston - cylinder device is compresiod fom 100kPa 2/C to 300kPa i a Poly'topic process. The Polytropic constant n-1.3. Assume constant specific heats at average temperature, determine a) The mole fraction of each component in the gas [6 Marks] b) The final temperature after compression. mixture. [8 Marks] c) The specific heats, Cp and Cv of the mixture.(in kJ/kg.K) d) The gas constant of...
Two kg of air as an ideal gas with constant properties expands inside a piston-cylinder device from an initial state where P. - 200 kPa. T-7°C to a state where P2 - 100 kPa and T2- 327° (Assume cp = 1.003 kJ/Kg.K.cv -0.716 kJ/kg.K. and R=0.287 kJ/Kg.K). 3. The change in internal energy, in kJ, between the specified states is most nearly: -483 460 - 166 -241 -322 120 . 231 144
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