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QILA: insulated closed vessel containing gas at temperature 50 °C if the temperature of the...
An insulated vessel contains four moles of an ideal, monatomic gas at absolute temperature To. The...
An insulated vessel contains four moles of an ideal, monatomic gas at absolute temperature To. The gas is placed in thermal contact with a heat reservoir at temperature T./3. Heat is exchanged between the reservoir and the gas until thermal equilibrium is established. (a) What is the equilibrium temperature of the gas? (b) is the process of heat exchange reversible or irreversible? Explain. (c) How does the pressure of the gas change during the process of heat exchange? Does the...
5. (11 marks total) A well-insulated rigid container is subdivided by a partition into two parts...
5. (11 marks total) A well-insulated rigid container is subdivided by a partition into two parts A and B, each of volume V,- = 0.2 m, and each filled with air. The initial temperatures and pressures are P,, = 200 kPa, T.,-100°C, P,-100 kPa, and TB,-20°C. The partition is then removed, and the system comes to equilibrium. (a) (7 marks) Determine the final temperature and pressure in the container (b) (4 marks) Calculate the total entropy change for the air...
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...
Question 3 0 out of 10 points A closed rigid still vessel contains a gas. The...
Question 3 0 out of 10 points A closed rigid still vessel contains a gas. The initial minus final change in internal energy of the system equals 90J.84J of heat are lost to the surroundings. Calculate the work exchanged during the process, Give the answer with zero decimal places. Selected Answer:6 Correct Answer: 6+ Response Feedback: Please, try again
A wall panel is insulated on the back and exposed to solar radiation on the front...
A wall panel is insulated on the back and exposed to solar radiation on the front surface. The exposed surface of the plate has an absorptivity α = 0.8 for radiation (i.e. 80% of radiant energy is absorbed). Solar radiation arrives to the panel at a rate of 1 kW⁄m2. The panel emissivity ϵ = 1 and the surrounding air temperature is 25°C. a. If we assume radiation is the only mechanism of heat transfer, in this scenario determine the...
A thin-walled vessel containing 2 liter of CO2 gas is kept at a temperature of 10°C....
A thin-walled vessel containing 2 liter of CO2 gas is kept at a temperature of 10°C. The gas slowly leaks out through a circular hole of diameter 100 um. The outside pressure is vacuumed that leakage back into the vessel is negligible. The diameter of CO2 molecule is about 4.6x10-10 m and its molecular weight is 44 kg/kmol. Estimate the time for the pressure to drop to one-half its initial value.
how to do these questions? Thanks Paragraph Styles 7 A rigid vessel of 1 m3 is...
how to do these questions?
Thanks
Paragraph Styles 7 A rigid vessel of 1 m3 is connected via a pipe and valve to another rigid vessel of volume 01m3 With the valve closed the arge vessel contains air at 6 bar. 30 %.while the smaller vessel contains Nitrogen at 20 bar 15 °C Find the mass of air, Ooxygen and Nitrogen in the larger vessel and the mass of Nitrogen in the smaller vesset The valve is now opened and...
Answers are next to the problems. 2. A small, un-insulated closed cylinder with a freely moving...
Answers are next to the problems.
2. A small, un-insulated closed cylinder with a freely moving piston contains air and is accidentally dropped into a lake and falls slowly to the bottom at 100 m below the surface Initially, the air in the cylinder is at atmospheric pressure of 100 kPa with a volume of 0.1 m3 and a temperature of 20°C. The lake is also at a uniform and constant temperature of 20°C. As the cylinder falls, the air...
1. a) A 5.00-liter rigid steel vessel is filled with 1.20 atm of oxygen gas at...
1. a) A 5.00-liter rigid steel vessel is filled with 1.20 atm of oxygen gas at 90°C. Determine the mass of oxygen gas in the vessel. b) 0.500 moles of helium gas are then added to the vessel from part (a). Determine the total pressure in the vessel at 90°C after the helium is added. c) Some water is then added to the vessel from part (b) so that a very small amount of liquid water is still present in...
Carbon dioxide gas is contained in a rigid vessel (internal volume-200 liters, mass-10 kg. Cp= 0.47...
Carbon dioxide gas is contained in a rigid vessel (internal volume-200 liters, mass-10 kg. Cp= 0.47 kJ/kg K). The gas is initially at 25°C and 1 atm. Heat is transferred to the gas and the vessel from an external heat source maintained at 500°C until the temperature of the gas reaches 400°C. Calculate the amount of heat transferred. Is this process reversible? Support your answer by calculating (AS)iotal. Assume CO2 to be an ideal gas with Cp given as a...
An insulated vessel contains four moles of an ideal, monatomic gas at absolute temperature To. The gas is placed in thermal contact with a heat reservoir at temperature T./3. Heat is exchanged between the reservoir and the gas until thermal equilibrium is established. (a) What is the equilibrium temperature of the gas? (b) is the process of heat exchange reversible or irreversible? Explain. (c) How does the pressure of the gas change during the process of heat exchange? Does the...
5. (11 marks total) A well-insulated rigid container is subdivided by a partition into two parts A and B, each of volume V,- = 0.2 m, and each filled with air. The initial temperatures and pressures are P,, = 200 kPa, T.,-100°C, P,-100 kPa, and TB,-20°C. The partition is then removed, and the system comes to equilibrium. (a) (7 marks) Determine the final temperature and pressure in the container (b) (4 marks) Calculate the total entropy change for the air...
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...
Question 3 0 out of 10 points A closed rigid still vessel contains a gas. The initial minus final change in internal energy of the system equals 90J.84J of heat are lost to the surroundings. Calculate the work exchanged during the process, Give the answer with zero decimal places. Selected Answer:6 Correct Answer: 6+ Response Feedback: Please, try again
A thin-walled vessel containing 2 liter of CO2 gas is kept at a temperature of 10°C. The gas slowly leaks out through a circular hole of diameter 100 um. The outside pressure is vacuumed that leakage back into the vessel is negligible. The diameter of CO2 molecule is about 4.6x10-10 m and its molecular weight is 44 kg/kmol. Estimate the time for the pressure to drop to one-half its initial value.
how to do these questions?
Thanks
Paragraph Styles 7 A rigid vessel of 1 m3 is connected via a pipe and valve to another rigid vessel of volume 01m3 With the valve closed the arge vessel contains air at 6 bar. 30 %.while the smaller vessel contains Nitrogen at 20 bar 15 °C Find the mass of air, Ooxygen and Nitrogen in the larger vessel and the mass of Nitrogen in the smaller vesset The valve is now opened and...
Answers are next to the problems.
2. A small, un-insulated closed cylinder with a freely moving piston contains air and is accidentally dropped into a lake and falls slowly to the bottom at 100 m below the surface Initially, the air in the cylinder is at atmospheric pressure of 100 kPa with a volume of 0.1 m3 and a temperature of 20°C. The lake is also at a uniform and constant temperature of 20°C. As the cylinder falls, the air...
Carbon dioxide gas is contained in a rigid vessel (internal volume-200 liters, mass-10 kg. Cp= 0.47 kJ/kg K). The gas is initially at 25°C and 1 atm. Heat is transferred to the gas and the vessel from an external heat source maintained at 500°C until the temperature of the gas reaches 400°C. Calculate the amount of heat transferred. Is this process reversible? Support your answer by calculating (AS)iotal. Assume CO2 to be an ideal gas with Cp given as a...
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