capillary rise apparatus

A capillary rise apparatus demonstrates how liquid moves upward in a small tube, called a capillary. When a thin glass tube is placed in a liquid like water or mercury, the liquid either rises or falls inside the tube due to surface tension and adhesion between the liquid and the tube’s material. The height of the liquid column provides information about the liquid’s properties, such as surface tension. This setup helps scientists understand the interaction between liquids and solids, important in fields like physics, chemistry, and engineering.