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1. Refrigerant - 12 as saturated vapor at 0.5 MPa is isentropically compressed by a compressor in a refrigeration plant to 0.9 MPa. Determine the enthalpy change for the process and the final fluid phase.
2. What is the quality and internal energy of 0.1 lb m of steam contained in a 1.3 ft
3. Container at a temperature of 233 ° F? 3. Air enters the combustion of a jet aircraft engine at 800 kPa and 600 K and exits at 2200 K. Since an ideal combustion cha mber is isobaric, determine the entropy change and exit specific volume.
4. Ten grams of water at 15 C and 100 kPa completely fills a balloon. The balloon is then heated on the stove top at constant pressure until the temperature reaches 125 ° C. Determine the boundary work in kJ involved in this process. What is the boundary power, if the process takes 700 seconds?
Anti-conservationists decide to get rid of the moon. Calculate the velocity increment \Deltav required for the moon to escape earth. Lunar lovers want the moon closer to earth. Calculate the minimum total velocity increment to bring the moon closer t..
acetone as a saturated liquid at 2280 mm hg is fed to a vaporizer. the product from the vaporizer is a superheated
the steady-state creep rates at 473 k for any alloy are 2.510-3 h-1 at 55 mpa and 2.410-2 h-1 at 69 mpa. the activation
the hull of a boat has a volume of 150 m3 and the total mass of the boat when empty is 8560 kg. determine how much load
consider a space ship in a stationary orbit around a planet. the potential energy of the ship is u-kmr where kgm is
Steam at 1000kPa and 300deg C expands to a pressure of 150kPa in a cylinder. If PV = constant during the process, calculate W, Q and delta S for the process.
a piston-cylinder device contains 6 kg of h2 and 21 kg of n2 at 160 k and 5 mpa. heat is now transferred to the device
funky fredy weights 1000 lbs. being too large to fit through door he must be hoisted from a platform to the second
an air-water vapor mixture enters an adiabatic saturator at 30 degree c and leave at 20 degree c which is the adiabatic
the average plate temperature of a ?at plate of length l with constant heat ?ux with air at 20? c ?owing over it at a
Genetically engineered bacteria (used to produce insulin) are immobilized in a solid agar disc (cylinder with flat surface facing up - 100 cm diameter, 5 cm height), which is exposed to large volume of stirred liquid media on both of the flat surface..
the wing is supported by a strut be with ball-and-socket joints at b and e and by bearings at a and f. the bearings
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