Um kgmol de oxígeno experimenta una compresión reversible isotérmica sin flujo y el volumen disminuye de 0.15 a 0.06 m3 ⁄ kg y la temperatura inicial es de 50℃. El gas cumple la ecuación de Van der Waals durante la compresión. Determine:
a. El trabajo realizado durante el proceso;
b. La presión final.

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

Atmospheric air has a temperature (dry bulb) of 80° f and a wet bulb temperature of 60° f when the barometric pressure is 14.696 psia. determine the specific humidity, grains/lb dry air. a. 11.4 c. 55.8 d. 22.5 b. 44.1

Amixture of slurry and mud is to be pumped through a horizontal pipe of diameter 500 mm. the fluid behaves as a bingham plastic with a yield stress of 30 pa and viscosity 0.04 pa.s. describe the effects of the shear stress through a transverse section of the pipe by plotting the variation in shear stress and velocity profile: (i) just before the slurry starts to move (ii) as the slurry flows when the pressure gradient is double that in part (i)