Homework Answers
Considering closed system
process, using corelation of pressure and volume for polytrpic
process.
specific work of process = 363.875 kJ/kg
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7. An ideal gas goes through a polytropic where n=1.4 with an initial pressure of 250...
Air goes through a polytropic process in a piston/cylinder setup. The polytropic index is n. The...
Air goes through a polytropic process in a piston/cylinder setup. The polytropic index is n. The process starts at P1 kPa, T1 oC, and ends with a pressure of P2 kPa. Answer Questions 6-8 about this process, considering the given information in Question 6. Assume air to be an ideal gas. Let, n=1.5 P1=2.3 MPa T1= 8.9 ×102 °C P2=2.1 ×102 kPa Cp = 1.004 kJ/kg-K, Cv = 0.717 kJ/kg-K, R = 0.287 kJ/kg-K Find the final temperature, in oC...
An ideal gas starts at atmospheric pressure and with a volume of 0.2m3. It goes through...
An ideal gas starts at atmospheric pressure and with a volume of
0.2m3. It goes through the "cyclic" process shown where
the final pressure and volume equal their initial values.
If the gas absorbs 3.50×104 J of heat
during this cyclic process, what was the gas's maximum pressure
value?
p(kPa) Pmax 101.3 V(m2) 0.2 0.6
A polytropic process for an ideal gas in one in which pressure and volume are related...
A polytropic process for an ideal gas in one in which pressure and volume are related by = const., where n is a constant. It is a generalization of the special processes considered earlier. Thus n = 0 defines an isobaric process, n = cp/cv an adiabatic process, n = 1 an isothermal process, and n = 8 an isochoric process. Suppose 1 kg of dry air at 280 K and 100 kPa undergoes a polytropic expansion in which the...
4. An ideal gas with constant specific heats undergoes a process from an initial pressure of...
4. An ideal gas with constant specific heats undergoes a process from an initial pressure of 50 kPa and initial specific volume of 4 m^3/kg to a final pressure of 80 kPa and final specific volume of 5 m^3/kg. The mass of the carbon monoxide is 3 kg. The gas has a molar mass of 44 kg/kmol and a specific heat at constant volume of 0.98 kJ/(kg∙K). Determine the entropy change of the gas during the process in kJ/K.
5: Calculate the work produced by the following processes of ideal gas with the mass 11...
5: Calculate the work produced by the following processes of ideal gas with the mass 11 kg, the pressure PI=750 kPa, the specific volume v1=0.2 m®/kg, and the specific volume v2=0.8 m/kg in the P-v property diagram. a. The isothermal process from 1 to 2 state. b. The process from 2 to 3 state. c. The cyclic process of 1-2-3-1. d. Determine the work when the process from 1 to 2 state is the polytropic process (P = CV") with...
An ideal gas is brought through an isothermal compression process. The 5.00 mol of gas goes...
An ideal gas is brought through an isothermal compression process. The 5.00 mol of gas goes from an initial volume of 215.4 x 100m to a final volume of 126.2 x 10-m. If 7.40 x 10' J is released by the gas during this process, what are the temperature T and the final pressure p, of the gas?
An ideal gas is brought through an isothermal compression process. The 5.00 mol of gas goes...
An ideal gas is brought through an isothermal compression process. The 5.00 mol of gas goes from an initial volume of 269 3 10-6 rm3 to a final volume of 1 12.7 10 6 m, If 7730 J İs released by the gas during this process, what are the temperature T and the final pressure py of the gas? Pa
4 In an isothermal process in = 1 for air (Ideal Gas where R = 0.287...
4 In an isothermal process in = 1 for air (Ideal Gas where R = 0.287 kJ/( pressure changes from 400 kPa to 100 kPa. What is the specific work done during this polytropic process? (5 pts.)
A system of diatomic ideal gas is in an initial state such that the pressure is...
A system of diatomic ideal gas is in an initial state such that the pressure is 69.0 kPa and the volume occupied by the gas is 6.00 L. The system then experiences a compression at constant temperature that raises the pressure to 165 kPa. (a) Calculate the final volume occupied by the gas. __L (b) Calculate the work done by the gas in this process. (Include the sign of the value in your answer.) __J Please show all work!
Considering that 0.1 kg of gas contained within a piston-cylinder assembly undergoes a polytropic expansion process...
Considering that 0.1 kg of gas contained within a piston-cylinder assembly undergoes a polytropic expansion process with polytropic exponent n=2. The initial state has specific internal energy 10 J/kg, pressure 100 Pa, specific volume 2 m3/kg, and the final state has specific internal energy 5 J/kg and pressure 50 Pa. 1. Sketch the process on a P − V diagram 2. Determine the total heat transfer into or out of the gas during the process.
An ideal gas starts at atmospheric pressure and with a volume of
0.2m3. It goes through the "cyclic" process shown where
the final pressure and volume equal their initial values.
If the gas absorbs 3.50×104 J of heat
during this cyclic process, what was the gas's maximum pressure
value?
p(kPa) Pmax 101.3 V(m2) 0.2 0.6
5: Calculate the work produced by the following processes of ideal gas with the mass 11 kg, the pressure PI=750 kPa, the specific volume v1=0.2 m®/kg, and the specific volume v2=0.8 m/kg in the P-v property diagram. a. The isothermal process from 1 to 2 state. b. The process from 2 to 3 state. c. The cyclic process of 1-2-3-1. d. Determine the work when the process from 1 to 2 state is the polytropic process (P = CV") with...
An ideal gas is brought through an isothermal compression process. The 5.00 mol of gas goes from an initial volume of 215.4 x 100m to a final volume of 126.2 x 10-m. If 7.40 x 10' J is released by the gas during this process, what are the temperature T and the final pressure p, of the gas?
An ideal gas is brought through an isothermal compression process. The 5.00 mol of gas goes from an initial volume of 269 3 10-6 rm3 to a final volume of 1 12.7 10 6 m, If 7730 J İs released by the gas during this process, what are the temperature T and the final pressure py of the gas? Pa
4 In an isothermal process in = 1 for air (Ideal Gas where R = 0.287 kJ/( pressure changes from 400 kPa to 100 kPa. What is the specific work done during this polytropic process? (5 pts.)
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