Below are listed the atomic weight, density and atomic radius for three hypothetical metal alloys. For each determine whether its crystal structure is FCC, BCC, or simple cubic and then justify your determination. Alloy
A
B
C
Atomic
Weight
(g/mol)
43.1
184.4
91.6
Density
(g/cm
3)
6.40
12.30
9.60
Atomic
Radius
(nm)
0.122
0.146
0.137

Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.

Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.

The higher the astm grain size number, the finer the gran is. a)-true b)-false