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a) In a polytropic process, a fluid is compressed to 2.75 times its initial pressure, whereas its temperature becomes1.65 times. What is the fluids index of expansion, n?
b) 1.2kg of Air at a pressure of 2.15MPa and a temperature of 585K, undergoes a reversible adiabatic process. Final pressure at the end of the process is 195KPa. Calculate final temperature and work done.
spherical tanks a and b shown here are connected by a pipe and valve. tank a has a diameter of 2.29 m and tank b a
a natural gas-fired furnace in a textile plant is used to provide steam at 130 c. at times of high demand the furnace
Calculate the magnitude of the moment about the base point O of the 600 N force and calculate and draw the shear force and bending moment diagram for the cantilever beam
A piston-cylinder device initially contains 0.4 m3 of air at 100 kPa and 80°C.The air is now compressed to 0.1 m3 in such a way that the temperature inside the cylinder remains constant. Determine the work done during this process.
a refrigerator cycle has a cop of 3 and removes 100kw of heat from a building which is kept at 23c. the device rejects
two boxes made of the same material have the same masses but their dimensions are different. the bases of the boxes in
an automobile can accelerate at the rate of 1.5ms2 and can decelerate at 7ms2. if driver never exceeds the speed limit
a rigid tank whose volume is 0.5 m3 initially containing ammonia at 20oc 1.5 bar is connected by a valve to a large
a spur pinion has a pitch of 6 teethin 22 full-depth teeth and a 20 degree pressure angle. this pinion runs at a speed
an air-standard otto cycle operates with 520 degrees r and 14.7 psia at the beginning of the compression portion of the
if the weight of a loaded truck is described by a normal distribution with a mean of 13.2 tons and a standard deviation
two tubes are available for a particular application 1 4.0 cm diameter circular tube and 2 4.0 cm square tube. air at 1
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