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The volume of 1 kg of helium in a piston-cylinder device is initially 5m^3. Now the helium is compressed to 3m^3 while its pressure remains constant at 200kPa. Determine the initial and final temperatures of helium as well as the work required to compress it, in kJ.
in a rankine cycle steam leaves the boiler at 400 celsius and 5mpa. the condenser pressure is 0.01mpa. the water
A centrifugal pump, weighing 600N and operating at 1000 rpm, is mounted on six springs of stiffness 6000 N/m each. Find the maximum permissible unbalance in order to limit the steady-state deflection to 5mmm peak-to-peak.
the volume of a cylinder is to be determined from measurements of the diameter and length. if the length and diameter
steam at 2 kg s enters a turbine at 6000 kpa and 600 c and exits as saturated vapor at 20 kpa. the turbine produces
water is to be pumped from a dam to a storage tank 20 m above at a rate of 70 ls. the electric power needed to achieve
we have a mixture that is 20 mol propane 35 mol n-butane and 45 mol n-hexane. if a flash drum operates at 400 kpa what
electronic components mouted on a flat plate are cooled by convection to the surroundings and by liquied water
a carnot engine operates between temperatures of 700k and 400k and does 150 j of work in each cycle. what is the
a 1 foot square 14 inch thick piece of oak floats in a large pool of water. the convective heat transfer coefficients
a 1.5 m concrete post is reinforced with six steel bars each with a 28mm diameter. knowing that es 200 gpa and ec 25
Calculate the yield stress of the material and the force required to produce yield - determine the bulk modulus of the material.
the pressure inside a system varies inversely with the square of the system volume. determine work required to compress
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