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The rigid tank in the figure has a volume of 60 liters and initially contains a two-phase liquid vapor mixture of H2O at a pressure of 15 bars and a quality of 20%. As the tank contents are heated, a pressure-regulating valve keeps the pressure constant in the tank by allowing saturated vapor to escape. Heating continues until no liquid remains in the tank. Neglecting kinetic and potential energy effects, determine: A) the amount of heat transfer, in kJ. B) the mass of vapor that escapes, in kg.
a nozzle receives 0.1 kgs of steam at 10 bar and 400 degrees c with negligible kinetic energy. the exit is at 5 bar and
gold au forms a substitutional solid with silver ag. compute the weight percent of gold that must be added to silver to
a household refrigerator with a coefficient of performance of 2.4 removes energy from the refrigerated space at a rate
Freshwater is impounded to a height of 11 ft behind a dam as shown. Determine the magnitude and location of the resiltant force on the 4-ft by 4-ft gate.
a mixing chamber receives 3kgmin ammonia as saturated liquid at -20 c from one line and ammonia at 40 c 300 kpa from
a golfer hits a golf ball from point a with an initial velocity of 50ms at an angle of 25 degrees with the horizontal.
car a starts from rest at t0 and travels along a straight road with a constant acceleration of 6fts2 until it reachers
2103 v 40 v b c qv e0pr2d r qdvpe012 r 4.24 m 42 a parallel-plate air-gap capacitor has a capacitance of 0.14 f.
a cylindrical specimen of a brass alloy 10.0 mm 0.39 in. in diameter and 120.0 mm 4.72 in. long is pulled in tension
a stationary radar operator determines that a ship is 19 km south of him. an hour later the same ship is 16 km
A gas mixture at 675.0°C and 113 kPa absolute enters a heat exchanger at a rate of 69.0 m3/hr. The gas leaves the heat exchanger at 245.0°C. The change in enthalpy of the gas during the cooling process is -6.80 kJ/mol.
a 6 lb collar is constrained to travel along a frictionless vertical ring of r3 ft. the spring is attached to the
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