What is sublimation?

Sublimation is the process in which a substance transitions directly from a solid to a gas without passing through the liquid phase. This occurs when the vapor pressure of the solid exceeds the atmospheric pressure at a certain temperature. Sublimation is commonly seen in substances such as dry ice (solid carbon dioxide) and mothballs (naphthalene).

Sublimation is the physical process in which a solid substance directly transforms/converts into the gas state without going through the liquid state. During sublimation, a substance absorbs energy from its surroundings and transforms into the gas state. It is an endothermic process.

The reverse of sublimation is deposition or desublimation, in which a gas directly transforms into a solid without going through the liquid state.