Solution :-
Given Data -mass of air m = 1 kg
Air is treated as ideal gas for that we know
Cp = 1.005 KJ /kg - k, Cv = 0.718 KJ/kg- k, K = 1.4, R = 0.287 KJ /kg- K
Process 1-2 Isothermal expansion (T1 = T2)
P1 = 0.5 MPa, T1 = 227°C, V2 = 2* V1
Process 2-3 Constant volume heating ( V2= V3)
P3 = 0.5 Mpa
PROBLEM-3 (30%) One kg of air in a piston-cylinder assembly undergoes two processes in series from...
One kg of air in a piston-cylinder assembly undergoes two processes in series from an initial state where p1 = 0.5 MPa, T1 = 227oC. Process 1-2: Constant-temperature expansion until the volume is twice the initial volume. Process 2-3: Constant-volume heating until the pressure is again 0.5 MPa. Sketch the two processes in series on a p-v diagram. Assuming ideal gas behavior, determine (a) the pressure at state 2, in MPa, (b) the temperature at state 3, in oC, and...
1) A piston-cylinder assembly containing a mass of 2 kilograms of carbon dioxide (CO2) undergoes two processes in series from an initial state where p1 = 4.8 MPa, T1 = 285°C: Process 1–2: Constant-temperature expansion until the volume is twice the initial volume. Process 2–3: Constant-volume heating until the pressure is again 4.8 MPa. Assuming ideal gas behavior, determine: (a) the pressure at state 2, in MPa, (b) the temperature at state 3, in °C, and (c) the overall work,...
1.Water vapor contained in a piston–cylinder assembly undergoes an isothermal expansion at 277°C from a pressure of 5.1 bar to a pressure of 2.7 bar. Evaluate the work, in kJ/kg. 2.Nitrogen (N2) contained in a piston–cylinder arrangement, initially at 9.3 bar and 437 K, undergoes an expansion to a final temperature of 300 K, during which the pressure–volume relationship is pV1.1 = constant. Assuming the ideal gas model for the N2, determine the heat transfer in kJ/kg. 3.Argon contained in...
I need help please! A mass of 1 kilograms of carbon dioxide (CO2) in a piston-cylinder assembly undergoes two processes in series from an initial state where p1 = 3 MPa, T1 = 204°C: Process 1–2: Constant-temperature expansion until the volume is twice the initial volume. Process 2–3: Constant-volume heating until the pressure is again 3 MPa. Assuming ideal gas behavior, determine the overall work, in kJ.
Can someone help me with this problem, please A mass of 4 kilograms of air in a piston-cylinder assembly undergoes two processes in series from an initial state where p1 = 1.4 MPa, T1 = 236°C: Process 1–2: Constant-temperature expansion until the volume is twice the initial volume. Process 2–3: Constant-volume heating until the pressure is again 1.4 MPa. Assuming ideal gas behavior, determine the temperature at state 3, in kelvin.
A piston-cylinder assembly contains air modeled as an ideal gas. 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 = 1.3 to p3 = 0.3 MPa. • Process 3-4: Constant-pressure compression to ν4 = ν1. • Process 4-1: Constant-volume heating. a) Sketch the cycle on a p-ν diagram. b) Calculate the work...
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)...
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 P, = 0.5 MPa to P2 = 0.4 MPa Process 2-3: Polytropic expansion with n=k to P; - 0.3 MPa Process 3-4: Constant-pressure compression to V4-V Process 4-1: Constant-volume heating. (a) Sketch the cycle on...
CAN YALL PLEASE HELP ME I HAVE 4 HOURS TO DO THESE!! THANK YOU!! Question 1 A mass of 4 kilograms of air in a piston-cylinder assembly undergoes two processes in series from an initial state where p1 = 0.3 MPa, T1 = 211°C: Process 1–2: Constant-temperature expansion until the volume is twice the initial volume. Process 2–3: Constant-volume heating until the pressure is again 0.3 MPa. Assuming ideal gas behavior, determine the temperature at state 3, in kelvin. _________________________________________________...
A piston-cylinder assembly contains air 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: Polutropic expansion with n = k to p3 = 0.3 MPa. Process 3-4: Constant-pressure compression to V4 = V1. Process 4-1: Constant volume heating. Sketch the cycle on a p-v...