Sublimation: The process in which a solid transforms into a gas phase without first melting to form a liquid phase. ... Dry ice is solid carbon dioxide at -78 ^oC. This substance converts to the gas phase by sublimation without first forming liquid carbon dioxide.

What happens during sublimation?

Sublimation is the conversion between the solid and the gaseous phases of matter, with no intermediate liquid stage. For those of us interested in the water cycle, sublimation is most often used to describe the process of snow and ice changing into water vapor in the air without first melting into water.

What happens to a substance during sublimation and deposition?

Sublimation is the change of state from a solid to a gas, without passing through the liquid state. Deposition is the change of state from a gas to a solid. Carbon dioxide is an example of a material that easily undergoes sublimation. The melting point is the temperature at which a solid changes into a liquid.