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a A rigid, tank contains two compartments, each of volume 1m2, separated by a membrane. Compartment...
4-40 4.40 A rigid, insulated tank consists of two compartments of equal volume separated by a...
4-40
4.40 A rigid, insulated tank consists of two compartments of equal volume separated by a valve. Initially, one compartment contains air at a pressure of 750 kPa and a temperature of 50°C, while the second compartment is completely empty. The valve is opened and it remains open until the two compartments reach pressure and temperature equilibrium. Determine the final pressure and temperature of the air, assuming each compartment has a volume of 0.65 m'.
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 rigid, non-conducting tank with a volume of 4 m3 is divided into two unequal parts...
A rigid, non-conducting tank with a volume of 4 m3 is divided into two unequal parts by a thin membrane. One side of the membrane represents 1/3 of the tank, contains nitrogen gas at 6 bar and 100°C. The other side, represents. 2/3 of the tank, is evacuated. If the membrane ruptures and the gas filled up the tank, describe how the process can be reversed in which the gas returns to its initial state. How much work (in kJ)...
An insulated tank has two compartments connected by a membrane. Initially, one compartment contains 0.4 kmol of CO2 at 150 ̊C, 600kPa and the other contains 0.3 kmol of N2 at 100 ̊C, 300kPa. The valve...
An insulated tank has two compartments connected by a membrane. Initially, one compartment contains 0.4 kmol of CO2 at 150 ̊C, 600kPa and the other contains 0.3 kmol of N2 at 100 ̊C, 300kPa. The valve is opened and the gases are allowed to mix until equilibrium is achieved. Determine the final temperature, pressure, and the amount of entropy generation.
A tank whose volume is unknown is divided into two parts by a partition. One side...
A tank whose volume is unknown is divided into two parts by a partition. One side of the tank contains 0.017 m of refrigerant-134a that is a saturated liquid at 0.95 MPa, while the other side is evacuated. The partition is now removed, and the refrigerant fills the entire tank. If the final state of the refrigerant is 20°C and 400 kPa, determine the volume of the tank. Round your answer to three decimal places. VFI R-134a V 0.017 m...
PROBLEM 3 (40 A closed rigid tank contains 1 kg of ammonia and undergoes a constant...
PROBLEM 3 (40 A closed rigid tank contains 1 kg of ammonia and undergoes a constant specific volume process The initial pressure is 5 bar, initial temperature is 20 "C, and final pressure is 2 bar, please: (a) Draw the T-, diagram and locate the initial state (State l) in the T-v diagram; (5%) (b) Read the pertinent Table to find the specific volume, in mkg, and specific internal energy, in (c) Determine the specific volume, in mkg, of final...
A rigid tank contains a partition that divides the tank into two sections, each having a...
A rigid tank contains a partition that divides the tank into two sections, each having a volume of 2 ft3 . The left side contains 1.5 lbm of refrigerant R-134a at a pressure of 50 psia, and the right side contains 4 lbm of refrigerant R-134a at 30 psia. The partition is removed and the contents are allowed to mix. Heat transfer occurs with the surroundings until the entire tank contents reach a new equilibrium temperature of 60 °F. For...
1. A rigid (constant volume) tank sealed by a valve initially contains 100 kg of air...
1. A rigid (constant volume) tank sealed by a valve initially contains 100 kg of air at a pressure of 100 kPa and 300 K. At time t = 0, the valve for the air tank is opened in a controlled manner and air leaks out isothermally (constant temperature) of the tank at a constant mass flow rate of 1 kg/s. The valve is closed after 75 seconds. Answer the following questions: Assuming air is an ideal gas, what is...
A closed, rigid tank contains R-134a, initially at 100°C. The refrigerant is cooled until it has...
A closed, rigid tank contains R-134a, initially at 100°C. The refrigerant is cooled until it has a quality of 98.26% at 20°C. For the refrigerant, determine: a. (3) A T-v diagram labeling state 1 and 2 b. (12) The initial and final pressures, in bar c. (10) The heat transfer and work for the process, each in kJ/kg
A rigid tank with a total volume of 0.8m3 initially contains water in the form of...
A rigid tank with a total volume of 0.8m3 initially contains
water in the form of a saturated liquid-vapour mixture at
P1=500kPa. The liquid portion of the mixture initially occupies a
volume of only 0.5L (the remainder is vapour). Steam from a supply
line at Pi=1000kPa and Ti=500°C is then injected into the tank
until the pressure in the tank reaches P2=800kPa. At this point
(final state), the mass in the tank is m2=2.8kg.
a) Find the initial quality x1...
4-40
4.40 A rigid, insulated tank consists of two compartments of equal volume separated by a valve. Initially, one compartment contains air at a pressure of 750 kPa and a temperature of 50°C, while the second compartment is completely empty. The valve is opened and it remains open until the two compartments reach pressure and temperature equilibrium. Determine the final pressure and temperature of the air, assuming each compartment has a volume of 0.65 m'.
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 tank whose volume is unknown is divided into two parts by a partition. One side of the tank contains 0.017 m of refrigerant-134a that is a saturated liquid at 0.95 MPa, while the other side is evacuated. The partition is now removed, and the refrigerant fills the entire tank. If the final state of the refrigerant is 20°C and 400 kPa, determine the volume of the tank. Round your answer to three decimal places. VFI R-134a V 0.017 m...
PROBLEM 3 (40 A closed rigid tank contains 1 kg of ammonia and undergoes a constant specific volume process The initial pressure is 5 bar, initial temperature is 20 "C, and final pressure is 2 bar, please: (a) Draw the T-, diagram and locate the initial state (State l) in the T-v diagram; (5%) (b) Read the pertinent Table to find the specific volume, in mkg, and specific internal energy, in (c) Determine the specific volume, in mkg, of final...
1. A rigid (constant volume) tank sealed by a valve initially contains 100 kg of air at a pressure of 100 kPa and 300 K. At time t = 0, the valve for the air tank is opened in a controlled manner and air leaks out isothermally (constant temperature) of the tank at a constant mass flow rate of 1 kg/s. The valve is closed after 75 seconds. Answer the following questions: Assuming air is an ideal gas, what is...
A rigid tank with a total volume of 0.8m3 initially contains
water in the form of a saturated liquid-vapour mixture at
P1=500kPa. The liquid portion of the mixture initially occupies a
volume of only 0.5L (the remainder is vapour). Steam from a supply
line at Pi=1000kPa and Ti=500°C is then injected into the tank
until the pressure in the tank reaches P2=800kPa. At this point
(final state), the mass in the tank is m2=2.8kg.
a) Find the initial quality x1...
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