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A closed system contains 0.6 kg of Helium at 156 kPa with a volume 0.4m^3. This systme undergoes a polytropic process resulting in the final state of 300 KPa and 50 degree C. Solve for:
1) The polytropic coefficient
2) The associated boundary work
During the process, the pressure and specific volume are related by pv = constant. For the refrigerant, determine the work and heat transfer per unit mass, each in KJ/kg.
a particle moves along a circular path of radius 300 . if its angular velocity is 2t where is in seconds determine the
If the maximum shear stress is limited to one-half of its yield strength and the fillet radius is 0.3 in, what is the maximum torque that can be applied? What power could be transmitted by a similar shaft rotating at 400 rpm?
one half cell of an electrochemical cell consists of a pure iron electrode in a solution of fe2 the other is a tin
If the beam has square cross section of 9 in., on each side, determine the absolute maximum bending stress in the beam.
the piston of a piston-cylinder device containing gas has a mass of 60kg and a cross-section area of 0.04m. the local atmospheric pressure is 0.97bar, and the gravitational acceleration is 9.81ms. determine the pressure inside the cylinder?
water is pumped from a lower reservoir to a higher reservoir by a pump that provides 21 kw of shaft power. the free
Consider 6.0 kg of austenite containing 0.45 wt% C, cooled to below 727 degrees Celcius (1341 degrees Farenheit).
a unit mass of an ideal gas at temperature t undergoes a reversible isothermal process from volume v1 to volume v2
assuming that within metal crystals the atoms can be considered as hard spheres in contact sketch arrangement of atoms
Why is it appropriate to take velocity measurements at several diameters downstream of the fan?
the triangular plate rotates about a fixed axis through point o with the angular properties indicated determine the
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