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R-134a is throttled from 1200kPa and 40 degree C to 200kPa. It is known that heat of 5kJ/kg is lost from R-134a to the surroundings at 20 degree C. Determine the specific enthalpy of R-134a at the exit; the temperature at exit; the specific entropy of R-134a at the exit; and the specific entropy generation.
an internal crack has been detected by means of x-rays in the shell of a large cylindrical pressure vessel. the
Air enters a 0.6 m diameter fan at 16 deg C, 101 kPa, and is discharged at 18 deg C, 105 kPa, with a volumetric flow rate of 0.35 m^3/s.
capacitor with capacitance 6.00 microf is connected to a resistor with r 780 o in series and an emf source of 25.0 v
saturated water vapor at 200 kpa is expanded slowly and without friction i.e. internally reversibly and isothermally in
a basketball of mass 0.570 kg is dropped from rest from a height of 1.25 m. it rebounds to a height of 0.734 m. a how
total power required to overcome viscous resistance and wave drag is 11.4 mw. use the perfomance characteristics of the
water is contained in a closed rigid tank of volume 0.3 m3 at an initial pressure of 4 bar and a quality of 66. heat
the process and volume relation is given p8-4vbar for a non flow process where v is in cubic meter.if 130kj of work is
a cycle consists of two isochoric and two isothermal process. the volume variation vmax vmin in the cycle is r fold
a cylinder with a movable piston contains a gas. initially the gas temperature is 25 c. a two stage process happens. in
a standardized procedure is expected to produce washers with very small deviation in their thicknesses. suppose that 10
A motorist enters a freeway at 36 kph and accelerates uniformly to 90 kph. From the odometer in the car, the motorist knows that she traveled 0.20 km while accelerating. Determine a.) the acceleration of the car, b.) the time required to reach 90 ..
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