Simply so, how does water expand when heated?
2.1 A was heated. An increase in temperature caused the water molecules to gain energy and move more rapidly, which resulted in water molecules that are farther apart and an increase in water volume. … When water is heated, it expands, or increases in volume.
Correspondingly, what is thermal expansion of liquid? Increase in dimensions of a liquid on being heated is called thermal expansion of the liquid. Types. Liquid has only volume. When heated, its volume increases. Increase in volume is called cubical expansion.