4 Problem 4: Piston Air expands reversibly and adiabatically in a piston-cylinder from a pressure of...
4 Problem 4: Piston
Air expands reversibly and adiabatically in a piston-cylinder from a pressure of 10 MPa and a
temperature of 350 C to a final pressure of 2.0 MPa. Calculate the work done in kJ/kg.
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4 Problem 4: Piston
Air expands reversibly and adiabatically in a piston-cylinder
from a pressure of...
5. Air expands isothermally constant temperature) in a closed, piston-cylinder device. The original state is given...
5. Air expands isothermally constant temperature) in a closed, piston-cylinder device. The original state is given by pı = 20 MPa, T = 1000 K. the process continues until the pressure drops to 2 MPa. The original volume of the air is V1 = 1 m². Determine the following: a. the mass of the air in the system, in kg. b. the final density of the air, in kg/m". Remember, Rair = 0.287 kJ/kg-K c. the final volume of the...
Air is trapped in a piston cylinder arrangement. The air expands from a temperature of 60...
Air is trapped in a piston cylinder arrangement. The air expands from a temperature of 60 C and a pressure of 280 KPa to a pressure of 140 KPa. During the process, 30 KJ/Kg of work is done and 14 KJ/Kg of heat is removed. The initial volume is 0.00878 m^3. a) What is the mass of the air? b) What is the temperature change during this process? c) What is the entropy change during this process? d) Does the...
Constant Pressure Process Oxygen (molar mass 32 kg/kmol) expands reversibly in a cylinder behind a piston...
Constant Pressure Process Oxygen (molar mass 32 kg/kmol) expands reversibly in a cylinder behind a piston at a constant pressure of 3 bar. The volume initially is o.o1 m2 and finally is o.o3 m3, the initial temperature is 17 C. Calculate the work output and the heat supplied during the expansion. Assume Oxygen to be a perfect gas and take Cp o.g17 kJ/kgK. 2.
Vol calculate mol sample of an ideal gas expands reversibly and isothermally to a final OL...
Vol calculate mol sample of an ideal gas expands reversibly and isothermally to a final OL If the initial pressure is 7.0 am and the temperature is 57.0°C (a) the initial volume of the gas (b) the final pressure of the gas (c) the work done in kJ (5) A 2 50 mol sample of an ideal monoatomic gas at 300K expands adiabatically and reversibly from a volume of 15.0 L to 60.0L Calculate the (a) final temperature of the...
Problem 6.030 SI Air is compressed adiabatically in a piston-cylinder assembly from 1 bar, 300 K...
Problem 6.030 SI Air is compressed adiabatically in a piston-cylinder assembly from 1 bar, 300 K to 4 bar, 600 K. The air can be modeled as an ideal gas and kinetic and potential energy effects are negligible. Determine the amount of entropy produced, in kJ/K per kg of air, for the compression. What is the minimum theoretical work input, in kj per kg of air, for an adiabatic compression from the given initial state to a final pressure of...
Thermodynamics question Initially, 0.05kg of air is contained in a piston cylinder device at 200 °C...
Thermodynamics question
Initially, 0.05kg of air is contained in a piston cylinder device at 200 °C and 1.6 MPa. The air then expands at constant temperature to a pressure of 0.4 MPa. Assume the process occurs slowly enough that the acceleration of the piston can be neglected. The ambient pressure is 101.35kPa. (i) Determine the work (kJ) performed bt the air in the cylinder on the piston. (ii) Determine the work (kJ) performed by the piston on the ambient environment....
Problem 6.030 SI Air is compressed adiabatically in a piston-cylinder assembly from 1 bar, 300 K...
Problem 6.030 SI Air is compressed adiabatically in a piston-cylinder assembly from 1 bar, 300 K to 9 bar, 600 K. The air can be modeled as an ideal gas and kinetic and potential energy effects are negligible. Determine the amount of entropy produced, in kJ/K per kg of air, for the compression. What is the minimum theoretical work input, in kj per kg of air, for an adiabatic compression from the given initial state to a final pressure of...
4. Water is expanded reversibly in a well-insulated piston-cylinder assembly from an initial state with a...
4. Water is expanded reversibly in a well-insulated piston-cylinder assembly from an initial state with a pressure of 120 lbf/in?, temperature of 500° F, and volume of 20 ft to a final state with a pressure of 60 lb/in?. Determine the work done on the water in Btu. Neglect changes in kinetic energy and potential energy.
2 140 pt) Reversible Adiabatic Expansion of Nitrogen. Nitrogen expands reversibly in an insulated cylinder fitted...
2 140 pt) Reversible Adiabatic Expansion of Nitrogen. Nitrogen expands reversibly in an insulated cylinder fitted with a piston. The N2 is initially at 500K and 5 bar pressure and expands to a final pressure of 1 bar. Determine the final temperature T of the N2 (in K) as well as the work done in the process W (mol), assuming N2 to be in the ideal gas state. Heat capacity, Cp is equal to a constant at 3.560R.
PROBLEM-4 (50%) One kg of air is in a piston-cylinder assembly. Air is modeled as an...
PROBLEM-4 (50%) One kg of air is in a piston-cylinder assembly. Air is modeled as an ideal gas with a constant specific heat ratio, k = 1.4. The air undergoes a power cycle consisting of four processes in series: Process 1-2: Constant-temperature expansion at 600 K from P1 = 0.5 MPa to P2 = 0.4 MPa Process 2–3: Polytropic expansion with n=k to P3 = 0.3 MPa Process 3–4: Constant-pressure compression to V4 = V1 Process 4–1: Constant-volume heating. (a)...
5. Air expands isothermally constant temperature) in a closed, piston-cylinder device. The original state is given by pı = 20 MPa, T = 1000 K. the process continues until the pressure drops to 2 MPa. The original volume of the air is V1 = 1 m². Determine the following: a. the mass of the air in the system, in kg. b. the final density of the air, in kg/m". Remember, Rair = 0.287 kJ/kg-K c. the final volume of the...
Constant Pressure Process Oxygen (molar mass 32 kg/kmol) expands reversibly in a cylinder behind a piston at a constant pressure of 3 bar. The volume initially is o.o1 m2 and finally is o.o3 m3, the initial temperature is 17 C. Calculate the work output and the heat supplied during the expansion. Assume Oxygen to be a perfect gas and take Cp o.g17 kJ/kgK. 2.
Vol calculate mol sample of an ideal gas expands reversibly and isothermally to a final OL If the initial pressure is 7.0 am and the temperature is 57.0°C (a) the initial volume of the gas (b) the final pressure of the gas (c) the work done in kJ (5) A 2 50 mol sample of an ideal monoatomic gas at 300K expands adiabatically and reversibly from a volume of 15.0 L to 60.0L Calculate the (a) final temperature of the...
Problem 6.030 SI Air is compressed adiabatically in a piston-cylinder assembly from 1 bar, 300 K to 4 bar, 600 K. The air can be modeled as an ideal gas and kinetic and potential energy effects are negligible. Determine the amount of entropy produced, in kJ/K per kg of air, for the compression. What is the minimum theoretical work input, in kj per kg of air, for an adiabatic compression from the given initial state to a final pressure of...
Thermodynamics question
Initially, 0.05kg of air is contained in a piston cylinder device at 200 °C and 1.6 MPa. The air then expands at constant temperature to a pressure of 0.4 MPa. Assume the process occurs slowly enough that the acceleration of the piston can be neglected. The ambient pressure is 101.35kPa. (i) Determine the work (kJ) performed bt the air in the cylinder on the piston. (ii) Determine the work (kJ) performed by the piston on the ambient environment....
Problem 6.030 SI Air is compressed adiabatically in a piston-cylinder assembly from 1 bar, 300 K to 9 bar, 600 K. The air can be modeled as an ideal gas and kinetic and potential energy effects are negligible. Determine the amount of entropy produced, in kJ/K per kg of air, for the compression. What is the minimum theoretical work input, in kj per kg of air, for an adiabatic compression from the given initial state to a final pressure of...
4. Water is expanded reversibly in a well-insulated piston-cylinder assembly from an initial state with a pressure of 120 lbf/in?, temperature of 500° F, and volume of 20 ft to a final state with a pressure of 60 lb/in?. Determine the work done on the water in Btu. Neglect changes in kinetic energy and potential energy.
2 140 pt) Reversible Adiabatic Expansion of Nitrogen. Nitrogen expands reversibly in an insulated cylinder fitted with a piston. The N2 is initially at 500K and 5 bar pressure and expands to a final pressure of 1 bar. Determine the final temperature T of the N2 (in K) as well as the work done in the process W (mol), assuming N2 to be in the ideal gas state. Heat capacity, Cp is equal to a constant at 3.560R.
PROBLEM-4 (50%) One kg of air is in a piston-cylinder assembly. Air is modeled as an ideal gas with a constant specific heat ratio, k = 1.4. The air undergoes a power cycle consisting of four processes in series: Process 1-2: Constant-temperature expansion at 600 K from P1 = 0.5 MPa to P2 = 0.4 MPa Process 2–3: Polytropic expansion with n=k to P3 = 0.3 MPa Process 3–4: Constant-pressure compression to V4 = V1 Process 4–1: Constant-volume heating. (a)...
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