A U-tube manometer in Figure 1 is used to measure the gauge pressure of a fluid P of density 850 kg/m^3. If the specific gravity of liquid Q is 13.6, what will be the gauge pressure at A if h1 = 0.6 m and h2 = 0.55 m above BC. Take into consideration Patm = 101.3 kN/m^2.

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Avolume of 2.65 m3 of air in a rigid, insulated container fitted with a paddle wheel is initially at 264 k, 5.6 bar. the air receives 432 kj by work from the paddle wheel. assuming the ideal gas model with cv = 0.71 kj/kg • k, determine for the air the amount of entropy produced, in kj/k

Asteam is contained in a rigid tank with a volume of 1 m3. initially, the pressure and temperature are 7 bar and 500 oc, respectively. the temperature drops due to cooling process. determine: (1) the temperature at which condensation begins in °c, (2) the fraction of the total mass that has condensed when the pressure decreased to 0.5 bar. (3) the volume in m3 occupied by saturated liquid at the final state?