The fluid $($density $1200k\frac{g}{m^3})$ is pumped at a constant rate $20\frac{m^3}{h}$ from the large reservoir to the evaporator. The pressure above the reservoir maintains atmosphere pressure and the pressure of the evaporator keeps $2\mathrm{.}63**{10}^{4}Pa($vacuum$).$ The distance between the level of liquid in the reservoir and the exit of evaporator is $15$ meter and frictional loss in the pipe is $120\frac{J}{k}g$ not including the exit of evaporator, what is the pump effective work and power if the diameter of pipe is $60mm?($Friction loss including the exit loss: $ub=0$ Friction loss not including the exit loss: $ub0)$