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Air flows through a tube that has a throttling valve in it. if the tube is perfectly insulated perform a thermodynamic analysis to determine how much entropy, in any , is generated in this throttling prosses. you may assume that the specific heats of the air are constant. the inlet temprature is 300K and the inlet pressre is10 bar. the exit pressre is 1.0(one) bar. m= 1kg/s.
The unit cell for uranium has orthorhombic symmetry with a, b and c lattice parameters of 0.286, 0.587, 0.495 nm, respectively. If its density, atomic weight, and atomic radius are 19.05 g/cm3, 238.03 g/mol, and 0.1385 nm, respectively, compute th..
the magnitude of the velocity vector of the car is v80 fts. if the vector v forms an angle theta 0.09 rad with the
if a mass of cobalt is replaced by a compound with a density of 4.13 mgm3 and results in a mass reduction of 0.79 kg
Air enters an adiabatic compressor at 0.1 kg/s, 100 kPa, 25 °C and exits at 700 kPa. (a) Draw a schematic of the system. Determine (b) the minimum power input (kW) and (c) the entropy generation rate (kW/K)
in a quasi-equilibrium process in a closed system a gas expands from a volume of 0.15m3 and a pressure of 120kpa to a
due to a poorly designed foundation the statue at point a slowly slides down a grass covered slope. to prevent further
the pressure in a partially evacuated enclosure is 26.8 in hg vacuum when the local barometer reads 29.5 in hg.
a concrete pier of square cross section is 6m high. the sides taper uniformly from a width of 0.5 m at the top to 1.0 m
a cylindrical specimen of an aluminum alloy has a youngs modulus of 59gpa original length of 250mm length at fracture
the given figure depicts an indirectly fired gas turbine engine. in the gas turbine engine air is compressed to a high
Hollow shaft transmitting power with shear limits. Design a hollow steel shaft to transmit 300 hp at 75 rpm without exceeding a shear tress of 8000 psi. Use 1.2:1 as the ratio of the outside diameter to the inside diameter.
calculate the energy for vacancy formation in al given that the equilibrium number of vacancies at room temperature 25
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