The contact angle between pure water and pure silver is 90 degree If a capillary tube made of silver - Physics - Mechanical Properties of Fluids

Question

The contact angle between pure water and pure silver is 90 degree
If a capillary tube made of silver is dipped at one end in pure
water, will the water rise in the capillary?

Aditi · Accepted Answer

We know , height of the liquid column ,h =The height h of a liquid column is given by  h=2γcosθρgr where γ  is the liquid-air surface tension (force/unit length), θ is the contact angle, ρ is the density of liquid , g is local acceleration due to gravity, and r is radius of tubeHere ,θ=90oand also,cos90o=0So,rise in liquid column, h = 0So ,water will not rise in the capillary

The contact angle between pure water and pure silver is 90 degree. If a capillary tube made of silver is dipped at one end in pure water, will the water rise in the capillary?