All Problems

Liquids. Capillary effects

Problem 2.178

A vertical capillary is brought in contact with the water surface. What amount of heat is liberated while the water rises along the capillary? The wetting is assumed to be complete, the surface tension equals \(\alpha\).

Reveal Answer
Q=2πα2/ρgQ=2 \pi \alpha^{2} / \rho g