What is sublimation meaning?

Sublimation is the process of changing a substance from a solid directly into a gas without going through the liquid phase. It occurs when the temperature and pressure of a solid substance are such that its vapor pressure exceeds atmospheric pressure. Sublimation is a physical change, and it is an important process used in various fields such as chemistry, physics, and material science. Examples of substances that can undergo sublimation include dry ice (solid carbon dioxide), mothballs (naphthalene), and snow (frozen water). Sublimation is used in the purification of substances, scientific experiments, and the manufacture of products such as freeze-dried food and air fresheners.