1298 lbm of liquid water contained in a cube at 150F is located inside a perfectly...
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1298 lbm of liquid water contained in a cube at 150F is located
inside a perfectly...
A container filled with 45 kg of liquid water at 95°C is placed in a 90...
A container filled with 45 kg of liquid water at 95°C is placed in a 90 m3 room that is initially at 12°C. Thermal equilibrium is established after a while as a result of heat transfer between the water and the air in the room. Using constant specific heats at room temperature, determine a) the final equilibrium temperature b) the amount of heat transfer between the water and the air in the room c) the entropy generation /3] I /8]...
Room 90 m 12°C 1) A container filled with 45 kg of liquid water at 95°C...
Room 90 m 12°C 1) A container filled with 45 kg of liquid water at 95°C is placed in a 90-m room that is initially at 12°C. Thermal equilibrium is established after a while as a result of heat transfer between the water and the air in the room. Using constant specific heats, determine (a) the final equilibrium temperature, (b) the amount of heat transfer between the water and the air in the room, and (c) the entropy generation. Assume...
A perfectly insulated cubical tank 0.8 m on each side contains liquid water at 18 C....
A perfectly insulated cubical tank 0.8 m on each side contains liquid water at 18 C. A cube of copper 0.2 m on each side with a temperature of 90 C is quickly plunged into the water displacing an amount of water equal to the volume of the copper block. A perfectly insulated lid is quickly placed on the top of the tank. Determine the final temperature of the block and the water after a long period of time.
A mass of 5.5 kg of saturated liquid-vapor mixture of water is contained in a piston-cylinder...
A mass of 5.5 kg of saturated liquid-vapor mixture of water is contained in a piston-cylinder at 101.325 kPa. Initially, 2.3 kg of the water is in the liquid phase and the rest is in the vapor phase. Heat is now transferred to the water, and the piston, which is resting on a set of stops, starts moving when the pressure inside reaches 300 kPa. Heat transfer continues until the total volume increases by 21 percent. Determine: a) the initial...
Problem 5(25 points) A rigid tank initially contains a partition that separates water at two different...
Problem 5(25 points) A rigid tank initially contains a partition that separates water at two different states. One side of the partition initially contains 4.5 lbm of steam at 150 psia and 600°F. The other side of the partition contains 7 lbm of saturated liquid 25 percent. The pressure at the final state is 50 psia. -vapor mixture at 300°F with a vapor mass fraction of partition is removed, and mixing occurs until equilibrium is established. The a) b) Determine...
A tank contains 500 kg of a liquid whose specufic gravity is 2. Determine the volume...
A tank contains 500 kg of a liquid whose specufic gravity is
2. Determine the volume of the liquid in the tank.
1.29 A tank contains 500 kg of a liquid whose specific gravity is 2. Determine the volume of the liquid in the tank. 130 Clouds can weigh thousands of pounds due to their liquid water content. Often this content is measured in grams per cubic meter g/m3.Assume that a cumulus cloud occupies a volume of one cubic kilometer,...
1. Water enters the constant 130-mm inside-diameter tubes of a boiler at 7 MPa and 65°C...
1. Water enters the constant 130-mm inside-diameter tubes of a boiler at 7 MPa and 65°C and leaves the tubes at 6 MPa and 450°C with a velocity of 80 m/s. Calculate the velocity of the water at the tube inlet and the inlet volume flow rate. [5-14] 2. Air enters a nozzle steadily at 50 psia, 140°F, and 150 ft/s and leaves at 14.7 psia and 900 ft/s. The heat loss from the nozzle is estimated to be 6.5...
You drop an ice cube into an insulated container full of water and wait for the...
You drop an ice cube into an insulated container full of water and wait for the ice cube to completely melt. The ice cube initially has a mass of 80.0 g and a temperature of 0°C. The water (before the ice cube is added) has a mass of 660 g and an initial temperature of 20.0°C. What is the final temperature (in °C) of the mixture? (Assume no energy is lost to the walls of the container, or to the...
Water vapor initially at 10 bara and 400°C is contained within a piston-cylinder assembly. The water...
Water vapor initially at 10 bara and 400°C is contained within a piston-cylinder assembly. The water is cooled at constant volume until its temperature is 150°C. The water is then condensed isothermally to saturated liquid. Sketch the process in T-v coordinates. Clearly label the three states. For the water as the system, (a) write the symbolic equation for the specific work (and simplify), w; and (b) evaluate the specific work, in kJ/kg.
A container filled with 45 kg of liquid water at 95°C is placed in a 90 m3 room that is initially at 12°C. Thermal equilibrium is established after a while as a result of heat transfer between the water and the air in the room. Using constant specific heats at room temperature, determine a) the final equilibrium temperature b) the amount of heat transfer between the water and the air in the room c) the entropy generation /3] I /8]...
Room 90 m 12°C 1) A container filled with 45 kg of liquid water at 95°C is placed in a 90-m room that is initially at 12°C. Thermal equilibrium is established after a while as a result of heat transfer between the water and the air in the room. Using constant specific heats, determine (a) the final equilibrium temperature, (b) the amount of heat transfer between the water and the air in the room, and (c) the entropy generation. Assume...
Problem 5(25 points) A rigid tank initially contains a partition that separates water at two different states. One side of the partition initially contains 4.5 lbm of steam at 150 psia and 600°F. The other side of the partition contains 7 lbm of saturated liquid 25 percent. The pressure at the final state is 50 psia. -vapor mixture at 300°F with a vapor mass fraction of partition is removed, and mixing occurs until equilibrium is established. The a) b) Determine...
A tank contains 500 kg of a liquid whose specufic gravity is
2. Determine the volume of the liquid in the tank.
1.29 A tank contains 500 kg of a liquid whose specific gravity is 2. Determine the volume of the liquid in the tank. 130 Clouds can weigh thousands of pounds due to their liquid water content. Often this content is measured in grams per cubic meter g/m3.Assume that a cumulus cloud occupies a volume of one cubic kilometer,...
1. Water enters the constant 130-mm inside-diameter tubes of a boiler at 7 MPa and 65°C and leaves the tubes at 6 MPa and 450°C with a velocity of 80 m/s. Calculate the velocity of the water at the tube inlet and the inlet volume flow rate. [5-14] 2. Air enters a nozzle steadily at 50 psia, 140°F, and 150 ft/s and leaves at 14.7 psia and 900 ft/s. The heat loss from the nozzle is estimated to be 6.5...
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