Question

2. A cylindrical vessel of radius 7 cm is completely filled with alcohol. If a capillary
tube of length 16 cm and internal diameter 0.8 mm is connected horizontally at the
bottom of this vessel, find how long it would take to empty half of the vessel. (Density
of alcohol
800 kg m-3, Viscosity of alcohol
0.0012 Nsm-2). [Ans: 25000 s]
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Answer 1

Answer:

25000 s is the answer.

Hope this helps...

Answer 2

Explanation:

here since pressure head varies with time we take an average pressure head which is important for further calculations. The next important thing is to not confuse both the radii. one is for the cylinder and the other capillary .

I guess now you understand