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2 kg of saturated water vapor at 600 kPa are contained in a piston-cylinder device. The water expands adiabatically until the pressure reaches 100 kPa. 700 kJ of work are reported to been done. Do the following:
a) Find the entropy change of the water
b) Plot on a T-s diagram
c) Determine if the process is possible
a brick wall 3 m high 7.5 m wide and 200 mm thick has a thermal conductivity of 0.7 wmcelcius. the temperature on the
A small steel ball bearing with a mass of 13 g is on a short compressed spring. When aimed vertically and suddenly released, the spring sends the bearing to a height of 1.35 m. Calculate the speed at which the ball leaves the spring.
A square 3m x 3m gate is located in the 45* sloping side of a dam. Some measurements indicate that the resultant force of the water on the gate is 500kN.(a)Determine the preassure at the bottom of the gate.(b)Show on a sketch where this force acts..
1 a 3-inch nominal size cast iron pipe has an actual inside diameter of 3.58 inches. the pipe is 5000 feet long and
dry air enters an industrial dryer with a pressure of 101 kpa a temperature of 250c and a mass flow rate of 2.6kghr
12 lbm of superheated water vapor at 60psia and 500deg c in a piston cylinder device is cooled at constant pressure
a cycle based on a rankine cycle with water as the work fluid must have its highest cycle pressure and temperature at
a steel ring of mean diameter 250 mm has a square section 2.5 mm by 2.5 mm. it is split by a narrow radial saw cut. the
a steel rod with a diameter of 0.625 is loaded in tension with 12000 lb load. in the unloaded condition the rod is 240
determine the minimum pump power required to pump water from one reservoir to another at an elevation of 110 m above
If the instrument weighs 85N, find the necessary static deflection of the isolator.
in order to help design a water channel that will be constructed on the moon an experiment is being conducted on earth.
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