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Some rocks or bricks contain small air pockets in them and
Chapter 2, Problem 117P(choose chapter or problem)
Problem 117P
Some rocks or bricks contain small air pockets in them and have a spongy structure;. Assuming the air spaces form columns of an average diameter of 0.004 mm, determine how high water can rise in such a material. Take the surface tension of the air-water interface in that material to be0.085 N/m.
Questions & Answers
QUESTION:
Problem 117P
Some rocks or bricks contain small air pockets in them and have a spongy structure;. Assuming the air spaces form columns of an average diameter of 0.004 mm, determine how high water can rise in such a material. Take the surface tension of the air-water interface in that material to be0.085 N/m.
ANSWER:
Solution
Step 1 of 3
Here we need to calculate the height to which water can rize h=? In a material with spongy structures bricks containing small air pockets. By assuming the air spaces form columns of an average diameter D=0.004m.
Given data,
Average diameter , d=0.004 mm=0.004
Radius, R=(d/2)=0.002
Surface tension of air-water interface,
Density of water,
Acceleration due to gravity,
To find,
Height to which water rises, h=?