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1. Determine the specific flow exergy, in Btu/lbmol and Btu/lb, at 440°F, 73.5 lbf/in.2 for (a) nitrogen (N2) and (b) carbon dioxide (CO2), each modeled as an ideal gas, and relative to an exergy reference environment for which T0 5 77°F, p0 5 14.7 lbf/in.2 Ignore the effects of motion and gravity.
2. 7.51 Determine the specific exergy and the specific flow exergy, each in Btu/lb, for steam at 350 lbf/in.2, 700°F, with V 5 120 ft/s and z 5 80 ft. The velocity and elevation are relative to an exergy reference environment for which T0 5 70°F, p0 5 14.7 lbf/in.2, and g 5 32.2 ft/s2.
a single degree of freedom system has a concentrated mass weighing 38.6 lb a spring constant of 22.5 lbin and a damping
consider incompressible viscous flow between two very long plates separated by a distance h. the bottom plate is
One cubic meter of argon initially at 300 K is compressed such that the change in the specific enthalpy is -0.27 kJ/kg-K and the temperature is reduced 100 K. Determine the final volume of the argon. (k = 1.67)
a machine of mass 10 kg is subjected to a vertical sinusoidal force. the amplitude of the force transmitted to the
A long concrete beam is to undergo a thermal test to determine its loss of strength in the event of a building lire. The beam cross section is triangular as shown in the sketch.
level process control labbased on the following graphs you should write a discussion report on1.determination of
consider a hollow steel sphere of inside radius r110 cm and outside radius of r220 cm. the thermal conductivity of the
SO3 has many uses including the production of sulfuric acid (H2SO4). A gas stream having the (molar) composition shown in the figure below is to be passed through a two-stage converter. The fractional conversion of SO2 to SO3 (per single pass) in the..
a 0.3 kg softball has a velocity of 15 ms at an angle of 35deg below the horizontal just before making contact with the
as the hollow steel g 77 gpa shaft shown rotates at 180 rpm a stroboscopic measurement indicates that the angle of
The motion of a particle in defined by the relation x = t3 - 15 t2 - 20, where ‘x' is expressed in metres and ‘t' in seconds. Determine the acceleration of the particle at t = 3 seconds.
an air conditioner operating at steady-state takes in moist air at 27 oc 1 bar and 70 relative humidity. the moist air
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