Data are provided for the crude oil storage tank shown in Figure. The tank initially contains 1000 m3 of crude oil. Oil is pumped into the tank through a pipe at a rate of 4 m3/ min and out of the tank at a velocity of 2.5 m/s through another pipe having a diameter of 0.15 m. The crude oil has a specific volume of 0.0015m3/ kg. How long does it take to fill the storage tank? (a) Determine the time rate of change of mass contained within the tank in kg/min? (b) How long does it take to fill the storage tank? (minutes)

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Properties of Fluids

The term fluid represents a type of substance that can easily change its shape under any external pressure/force and can flow. Fluids can acquire any shape in which it is stored and can resist normal stresses but cannot resist shear stress in rest condition. Whenever external shear stress is applied to fluids, it starts to flow. The fluids may be liquid or gas. Example- water, air, etc.