Question

Observe lyure
U
Water
Mercury
a) Which liquid undergoes capillary depression?
b) Explain the reason for capillary depression?
c) To which point does the capillary rise of a liquid happen against the gravitational force?
d) What is the relation between the diameter of a tube and capillary rise?​

Answer 1

Answer:

The capillary rise is inversely proportional to the tube radius. It can be also applied to the case where the liquid level in the tube decreases below the outer liquid surface; this situation happens when θ=90°

Explanation:

Mercury

Mercury causes capillary depression with an angle of contact of about 1300 in a clean glass in contact with air.