Calcule la presión ejercida por 5 moles de CH3OH gaseoso que ocupa el volumen de V = 0,6187 litros, a una temperatura de 500K usando la ecuación universal de los gases y la ecuación de Van der Waals y comparar los resultados. Determinar el % de error entre ambos valores. Estos valores de presión y temperatura se encuentran por debajo de la temperatura crítica del metanol (Tc = 512,5 K, Pc = 80,8 atm) y las constantes experimentales de la ecuación de Van der Waals para el metanol son: a = 9,23×106 cm6 atm mol-2 b = 65,1 cm3 mol-1

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

Aflywheel accelerates for 5 seconds at 2 rad/s2 from a speed of 20 rpm. determine the total number of revolutions of the flywheel during the period of its acceleration. a.5.65 b.8.43 c. 723 d.6.86

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)