A sealed rigid tank has 0.1 kg saturated vapor R-410a at 0°C that is cooled to...
Saturated vapor R-410A at 0 oC in a rigid tank is cooled to -10 oC. Find thespecific work (work per unit mass) and the specific heat transfer.
A rigid tank contains 125,0 kg of saturated water vapor at 245 °C. Determine : a. The pressure b. The internal energy in kJ c. The volume of the rigid tank.
A 1-mº rigid tank contains 100 kg R-134a at a temperature of 16 °C. A valve on top of the tank is opened, and saturated vapor is allowed to escape through a throttle to a collector system at 100 kPa. During the process the temperature inside the tank remains at 16 °C by heat transfer from the 20 °C surroundings. The valve is closed when no more liquid remains inside the tank. Calculate the heat transfer to the tank and...
Water contained in a closed, rigid tank, initially saturated vapor at 200°C, is cooled to 101.3°C. Determine the final pressure, in bar.
In a well-insulated rigid tank which contains 2 kg of a saturated liquid-vapor mixture of water at 200 kPa, 40% of the mass is in the liquid phase. A heater is providing heat to the content of the tank so that all liquid phase converts to vapor phase. Calculate the entropy change of water in this process.
A well-insulated rigid tank contains 2 kg of a saturated liquid-vapor mixture of water at 100 kPa. Initially, three-quarters of the mass is in the liquid phase. An electric resistance heater placed in the tank is now turned on and kept on until all the liquid in the tank is vaporized. Determine the entropy change of the steam during this process. Answer: 8.10 kJ/K Analysis From the steam tables (Tables A-4 through A-6)
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
and vapor results. O e. It becomes compressed liquid. 1 ered A rigid tank contains 2.0 kg saturated liquid water at 40 C, then 25 kJ of heat was added to it while being stirred with a paddle which resulted in adding 30 kJ of wok, what is the final internal energy (kJ) of the water? f 1.00 stion Select one: O a. U2=473.66 kJ. b. U2=557.32 kJ. O c. U2=264.09 kJ. O d. U2=306.46 kJ. O e. U2=390.06 kJ....
1. (10 pts) A 10 m® rigid storage tank contains oxygen gas (R = 0.2598 kJ/kg.K, Cp = 0.918 kJ/kg.K, cv = 0.658 kJ/kg.K). The tank is initially 200 kPa and 600° It is cooled to 25°C in 35 minutes. Determine: 1. (3 pts) The mass of oxygen in the tank, in kg. 2. (3 pts) The final pressure in the tank, in kPa. 3. (4 pts) The rate of heat transfer from the oxygen, in kW.
A rigid tank initially contains 0.32 kg steam at 4 MPa, superheated by 350°C. Now the steam loses heat to the surroundings and the cooling of tank continues until the cylinder contains water at 90°C. Determine; (a) the final pressure and the quality (if mixture), (b) the boundary work, (c) the amount of heat transfer (d) and the total entropy generation if the Tsur=20 °C.