A shipping container, measuring 3 feet LaTeX: \left[ft\right][ f t ] by 2 feet LaTeX: \left[ft\right][ f t ] by 4.5 feet LaTeX: \left[ft\right][ f t ], weighs 15 pounds-force LaTeX: \left[lb_f\right][ l b f ] when empty. The container is filled completely with a fluid that has a specific gravity of 0.85. The container is then pushed across the lab a distance of 20 feet LaTeX: \left[ft\right][ f t ]. Determine the work done to push the container in units of kilojoules LaTeX: \left[kJ\right][ k J ].

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false

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.

Estimate the change in specific internal energy au and specific enthalpy h from inlet to outlet for ethylene glycol (a liquid) flowing through each of the following devices: (a) a heat exchanger where the glycol temperature increases from 20 °c to 80 °c; (b) a pump operating at about 25 °c and increasing the glycol pressure from 100 kpa to 8 mpa.