Question

Define Sublimation.

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Answer 1

Answer:

Sublimation is the transition of a substance directly from the solid to the gas state, without passing through the liquid state. The reverse process of sublimation is deposition or desublimation, in which a substance passes directly from a gas to a solid phase.

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Answer 2

$\Large\rm\red{\boxed{\fbox{Sublimation}}}$

We can define sublimation as the transition of a substance from the solid phase to the gaseous phase without changing into the liquid phase. This process is an endothermic phase transition that occurs at a temperature and pressure below the triple point of the substance. Desublimation or deposition is the reverse of this process in which a gas is directly converted into solid-state.

$\Large\rm\green{\boxed{\fbox{Example}}}$

$\bullet$The best example of sublimation is dry ice which is a frozen form of carbon dioxide. When dry ice gets exposed to air, dry ice directly changes its phase from solid-state to gaseous state which is visible as fog. Frozen carbon dioxide in its gaseous state is more stable than in its solid-state.