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5. (11 marks total) A well-insulated rigid container is subdivided by a partition into two parts...
M&S Problem 6.25. A rigid, insulated container contains 3 m? of air. The container is fitted...
M&S Problem 6.25. A rigid, insulated container contains 3 m? of air. The container is fitted with a paddle wheel and the air inside is initially at 295 K, 200 kPa. The air receives 1546 kJ from the paddle wheel. Assuming the air behaves as an ideal gas, determine (a) the mass of the air; (b) the final temperature in K; and (c) the amount of entropy generated, in kJ/K.
7. The chemical engineering lab contains a 1.5 m rigid tank installed with a paddle wheel....
7. The chemical engineering lab contains a 1.5 m rigid tank installed with a paddle wheel. Suppose this tank is filled with 2.7 kg of carbon dioxide at 100 kPa, and that paddle-wheel work is done on the system until the pressure rises to 150 kPa. Determine the entropy change of the system during this process (kJ/K). You may assume that the tank is well-insulated, and that CO2 is an ideal gas with constant specific heats at RT.
The UTC chemical engineering lab contains a 1.5 m3 rigid tank installed with a paddle wheel....
The UTC chemical engineering lab contains a 1.5 m3 rigid tank installed with a paddle wheel. Suppose this tank is filled with 2.7 kg of carbon dioxide at 100 kPa, and that paddle-wheel work is done on the system until the pressure rises to 150 kPa. Determine the entropy change of the system during this process (kJ/K). You may assume that the tank is well-insulated, and that CO2 is an ideal gas with constant specific heats at RT.
A rigid well insulated container holds 1 kg of dry air at P1= 5 MPa. 5....
A rigid well insulated container holds 1 kg of dry air
at P1= 5 MPa.
5. A rigid well-insulated container holds 1 kg of dry saturated steam at P = 5 MPa. At some point in time, a tiny crack develops in the uppermost region of the container. Through this crack, some of the H2O escapes slowly into the atmosphere until the pressure inside the container falls to P2 = 1.5 MPa. This leakage process is slow enough so that...
(25 pts) A well-insulated and well-sealed 2-m x 3-m x 4-m room is initially at Tal...
(25 pts) A well-insulated and well-sealed 2-m x 3-m x 4-m room is initially at Tal = 22 °C and p = 100 kPa. A mass of mw = 20 kg of liquid water at Tw./ = 80 °C is brought into the room and the system is allowed to reach equilibrium conditions (state 2). 2m x 3m x 4m ROOM 22°C 100 kPa Specific heat values for the air and water may be taken as Cp,air = 1.005 kJ/kg-K;...
Propane is compressed from an initial state with a pressure of 100 lbf/in2 and a quality...
Propane is compressed from an initial state with a pressure of 100 lbf/in2 and a quality of 0.40 to a final saturated liquid state with a temperature is 50°F. Is it possible for this process to occur adiabatically? Justify your answer. Air is contained in a rigid, well-insulated container of volume 3 m3. The air undergoes a process from an initial state with a pressure of 200 kPa and temperature of 300 K. During the process, the air receives 720...
Question 2: (Total 20 marks. Each question is worth 5 marks each) A. A flexible container...
Question 2: (Total 20 marks. Each question is worth 5 marks each) A. A flexible container is filled with Hydrogen gas at room temperature and the container is squeezed to one- third its volume. Explain how the pressure of the Hydrogen gas molecules in the flexible container will be affected by the change in volume? B. Device A with a resistance of 10 ohms and Device B with a resistance of 15 ohms are connected in a parallel circuit. Explain...
2. (12 marks total) A number of gas turbine engines today have compressor intercooling provided by...
2. (12 marks total) A number of gas turbine engines today have compressor intercooling provided by injecting liquid water into the air leaving the low pressure compressor. The intercooler in the sketch provides cooling partly by cold water injection and partly by heat transfer to the surroundings. A steady flow of air enters 1 mw the compressor at T = 20°C, P = 100 kPa and a relative humidity compressor intercooler of o. = 50% at a flow rate of...
Thermodynamics problem. please show detail work including which table you used, thanks. A. Please provide your...
Thermodynamics problem.
please show detail work including which table you
used, thanks.
A. Please provide your assumptions, a diagram (with system boundary), and a major formula at each question B. Please provide the table number if you need to use tables at Appendix. 1. As shown in the figure, an insulated box is initially divided into halves by a frictionless, massless, thermally conducting piston. On one side of the piston is 1.5 m of air at 400 K at 400...
Q1 Otto Cycle Bookwork Question An air standard Otto cycle:- 1. Draws air from the environment...
Q1 Otto Cycle Bookwork Question An air standard Otto cycle:- 1. Draws air from the environment at 100 kPa and 5°C. 2. The cycle has a compression ratio of 9.2: 1. 3. Heat (880 kJ/kg) is added to the compressed gases at constant volume. 4. The working fluid is air, a perfect gas with ratio of specific heats y = 1.4 and gas constant R = 287 J/kgk. Follow the instructions below: a) Describe each of the four processes from...
M&S Problem 6.25. A rigid, insulated container contains 3 m? of air. The container is fitted with a paddle wheel and the air inside is initially at 295 K, 200 kPa. The air receives 1546 kJ from the paddle wheel. Assuming the air behaves as an ideal gas, determine (a) the mass of the air; (b) the final temperature in K; and (c) the amount of entropy generated, in kJ/K.
7. The chemical engineering lab contains a 1.5 m rigid tank installed with a paddle wheel. Suppose this tank is filled with 2.7 kg of carbon dioxide at 100 kPa, and that paddle-wheel work is done on the system until the pressure rises to 150 kPa. Determine the entropy change of the system during this process (kJ/K). You may assume that the tank is well-insulated, and that CO2 is an ideal gas with constant specific heats at RT.
The UTC chemical engineering lab contains a 1.5 m3 rigid tank installed with a paddle wheel. Suppose this tank is filled with 2.7 kg of carbon dioxide at 100 kPa, and that paddle-wheel work is done on the system until the pressure rises to 150 kPa. Determine the entropy change of the system during this process (kJ/K). You may assume that the tank is well-insulated, and that CO2 is an ideal gas with constant specific heats at RT.
A rigid well insulated container holds 1 kg of dry air
at P1= 5 MPa.
5. A rigid well-insulated container holds 1 kg of dry saturated steam at P = 5 MPa. At some point in time, a tiny crack develops in the uppermost region of the container. Through this crack, some of the H2O escapes slowly into the atmosphere until the pressure inside the container falls to P2 = 1.5 MPa. This leakage process is slow enough so that...
(25 pts) A well-insulated and well-sealed 2-m x 3-m x 4-m room is initially at Tal = 22 °C and p = 100 kPa. A mass of mw = 20 kg of liquid water at Tw./ = 80 °C is brought into the room and the system is allowed to reach equilibrium conditions (state 2). 2m x 3m x 4m ROOM 22°C 100 kPa Specific heat values for the air and water may be taken as Cp,air = 1.005 kJ/kg-K;...
Question 2: (Total 20 marks. Each question is worth 5 marks each) A. A flexible container is filled with Hydrogen gas at room temperature and the container is squeezed to one- third its volume. Explain how the pressure of the Hydrogen gas molecules in the flexible container will be affected by the change in volume? B. Device A with a resistance of 10 ohms and Device B with a resistance of 15 ohms are connected in a parallel circuit. Explain...
2. (12 marks total) A number of gas turbine engines today have compressor intercooling provided by injecting liquid water into the air leaving the low pressure compressor. The intercooler in the sketch provides cooling partly by cold water injection and partly by heat transfer to the surroundings. A steady flow of air enters 1 mw the compressor at T = 20°C, P = 100 kPa and a relative humidity compressor intercooler of o. = 50% at a flow rate of...
Thermodynamics problem.
please show detail work including which table you
used, thanks.
A. Please provide your assumptions, a diagram (with system boundary), and a major formula at each question B. Please provide the table number if you need to use tables at Appendix. 1. As shown in the figure, an insulated box is initially divided into halves by a frictionless, massless, thermally conducting piston. On one side of the piston is 1.5 m of air at 400 K at 400...
Q1 Otto Cycle Bookwork Question An air standard Otto cycle:- 1. Draws air from the environment at 100 kPa and 5°C. 2. The cycle has a compression ratio of 9.2: 1. 3. Heat (880 kJ/kg) is added to the compressed gases at constant volume. 4. The working fluid is air, a perfect gas with ratio of specific heats y = 1.4 and gas constant R = 287 J/kgk. Follow the instructions below: a) Describe each of the four processes from...
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