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3. An insulated tank is initially divided with a membrane. See Fig. 3. One portion has...
Problem 3. (10 points) A closed and insulated rigid tank (perfectly insulated) is initially divided into...
Problem 3. (10 points) A closed and insulated rigid tank (perfectly insulated) is initially divided into halves by a separator. On one side of the separator is 1 m of air at 300 K, 2 bar. On the other side is 1 m of air at 500 K, 1 bar. The separator is removed, and the air from the two sides mixes and reaches equilibrium state Please treat the air as ideal gas with cp-1.001 kJ/kg K and c0.714 kJ/kg...
Problem 3 A rigid, insulated tank filled with 0.6 kg of air is initially at 2...
Problem 3 A rigid, insulated tank filled with 0.6 kg of air is initially at 2 bar, 20°C. The air is stirred by a paddle wheel until its pressure is 2.5 bar. The volume specific heat (Cv) is constant with 0.72 kJ/KgK. Let To = 20°C, po = 1 bar ATTENTION: You are NOT allowed to use Table A-22 to find properties in this problem. Use the volume specific heat to find properties as needed. (a) Determine the final temperature...
Problem 3-2 A rigid, well-insulated tank consists of two compartments eparated by a valve, one being...
Problem 3-2 A rigid, well-insulated tank consists of two compartments eparated by a valve, one being twice the volume of the other. Initially, the smaller compartment contains 10 kg of nitrogen at 6 bar and 100°C, while the larger one is evacuated. The valve is opened and the gas expands to fill the total volume, eventually achieving an equilibrium state. Calculate: a) The final temperature, in K. b) The final pressure, in bar, c) The total exergy destroyed, in kJ...
A 46 kg copper block initially at 140°C is dropped into an insulated tank that contains...
A 46 kg copper block initially at 140°C is dropped into an insulated tank that contains 90 L of water at 10°C. Determine the final equilibrium temperature and the total entropy change for this process. The specific heat of water at 25°C is Cp= 4.18 kJ/kg-K. The density of water is 997 kg/m3. The specific heat of copper at 27°C is cp=0.386 kJ/kg-K. Water Copper 90 L The final equilibrium temperature is 15.85 K. The total entropy change during this...
Problem 6.028 SI Air contained in a rigid, insulated tank fitted with a paddle wheel, initially...
Problem 6.028 SI Air contained in a rigid, insulated tank fitted with a paddle wheel, initially at 300 K, 2 bar, and a volume of 2 m, is stirred until its temperature is 600 K. Assuming the ideal gas model for the air, and ignoring kinetic and potential energy, determine (a) the final pressure, in bar (b) the work, in kJ (c) the amount of entropy produced, kJ/K Solve using: (1) data from Table A-22. (2) constant cy read from...
1.Argon contained in a closed, rigid tank, initially at 62.3°C, 3.9 bar, and a volume of...
1.Argon contained in a closed, rigid tank, initially at 62.3°C, 3.9 bar, and a volume of 4.2 m3, is heated to a final pressure of 9.4 bar. Assuming the ideal gas model with k = 1.6 for the argon, determine the heat transfer, in kJ. 2.Water vapor contained in a piston–cylinder assembly undergoes an isothermal expansion at 223°C from a pressure of 5.4 bar to a pressure of 1.9 bar. Evaluate the work, in kJ/kg. 3.A mass of 4 kilograms...
6.50 m A closed, rigid tank contains 5 kg of air initially at 300 K, 1...
6.50 m A closed, rigid tank contains 5 kg of air initially at 300 K, 1 bar. As illustrated in Fig. P6.50, the tank is in contact with a thermal reservoir at 600 K and heat transfer occurs at the boundary where the temperature is 600 K. A stirring rod transfers 600 kJ of energy to the air. The final temperature is 600 K. The air can be modeled as an ideal gas with cy = 0.733 kJ/kg . K...
Thermodynamics 1. (correct answer: 0.080595 ) Initially, an insulated rigid tank contains 20 kg of water...
Thermodynamics 1. (correct answer: 0.080595 ) Initially, an insulated rigid tank contains 20 kg of water at 29.5oC and 101 kPa. The tank also contains a 4.86 kg aluminum block at 93.2oC. Using constant specific heats evaluated at 300 K, determine the total entropy production (kJ/K) after an hour assuming thermal equilibrium is achieved. 2. Correct Answer: 8.0087 ± 0.1% Steam at 1 MPa, 593.2oC, expands in a turbine to 0.01 MPa. If the process is isentropic, find the specific...
An insulated rigid tank is divided into two equal parts by a partition. Initially, one part...
An insulated rigid tank is divided into two equal parts by a partition. Initially, one part contains 15 kg of water vapor with steam quality 20% at 20 bar and the other part is evacuated. The partition is removed, and the water vapor expands into the entire tank.a) Determine the final temperature and pressure using higher accuracy calculation. b) Recalculate (a) by assuming the gas behave as ideal gas
Help please! A volume of 7.16 m 3 of air in a rigid, insulated container fitted...
Help please! A volume of 7.16 m 3 of air in a rigid, insulated container fitted with a paddle wheel is initially at 347 K, 3.6 bar. The air receives 539 kJ by work from the paddle wheel. Assuming the ideal gas model with c v = 0.66 kJ/kg • K, determine for the air: a) The amount of entropy produced, in J/K, and The final temperature in Kelvin
Problem 3. (10 points) A closed and insulated rigid tank (perfectly insulated) is initially divided into halves by a separator. On one side of the separator is 1 m of air at 300 K, 2 bar. On the other side is 1 m of air at 500 K, 1 bar. The separator is removed, and the air from the two sides mixes and reaches equilibrium state Please treat the air as ideal gas with cp-1.001 kJ/kg K and c0.714 kJ/kg...
Problem 3 A rigid, insulated tank filled with 0.6 kg of air is initially at 2 bar, 20°C. The air is stirred by a paddle wheel until its pressure is 2.5 bar. The volume specific heat (Cv) is constant with 0.72 kJ/KgK. Let To = 20°C, po = 1 bar ATTENTION: You are NOT allowed to use Table A-22 to find properties in this problem. Use the volume specific heat to find properties as needed. (a) Determine the final temperature...
Problem 3-2 A rigid, well-insulated tank consists of two compartments eparated by a valve, one being twice the volume of the other. Initially, the smaller compartment contains 10 kg of nitrogen at 6 bar and 100°C, while the larger one is evacuated. The valve is opened and the gas expands to fill the total volume, eventually achieving an equilibrium state. Calculate: a) The final temperature, in K. b) The final pressure, in bar, c) The total exergy destroyed, in kJ...
A 46 kg copper block initially at 140°C is dropped into an insulated tank that contains 90 L of water at 10°C. Determine the final equilibrium temperature and the total entropy change for this process. The specific heat of water at 25°C is Cp= 4.18 kJ/kg-K. The density of water is 997 kg/m3. The specific heat of copper at 27°C is cp=0.386 kJ/kg-K. Water Copper 90 L The final equilibrium temperature is 15.85 K. The total entropy change during this...
Problem 6.028 SI Air contained in a rigid, insulated tank fitted with a paddle wheel, initially at 300 K, 2 bar, and a volume of 2 m, is stirred until its temperature is 600 K. Assuming the ideal gas model for the air, and ignoring kinetic and potential energy, determine (a) the final pressure, in bar (b) the work, in kJ (c) the amount of entropy produced, kJ/K Solve using: (1) data from Table A-22. (2) constant cy read from...
6.50 m A closed, rigid tank contains 5 kg of air initially at 300 K, 1 bar. As illustrated in Fig. P6.50, the tank is in contact with a thermal reservoir at 600 K and heat transfer occurs at the boundary where the temperature is 600 K. A stirring rod transfers 600 kJ of energy to the air. The final temperature is 600 K. The air can be modeled as an ideal gas with cy = 0.733 kJ/kg . K...
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