Question

What is sublimation?​

Answer 1

Heya Mate ❤️

what is sublimation?

Give two examples of substance that sublimation

Answer :

⫸ Sublimation is the process when, a substance transforms from a solid to a gas without ever going through a liquid phase.

⫸ It includes melting, freezing, and evaporation, is a form of phase transition, or shift in a state of matter.

⫸ It occurs when the particles of a solid absorb enough energy to completely overcome the force of attraction between them. Solid carbon dioxide changes directly to the gaseous state.

⫸ Example :- Snow and ice can sublime in the winter months without melting.

Mothballs and camphor are also an examples of sublimate solids

Answer 2

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The term sublimation is the passage or the transformation or conversion that substances undergo when passing from one state to another, for example from a solid substance to gas.

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.

Examples of Sublimation

• 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.

• 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 is the sublimation process?

• Sublimation, including melting, freezing, and evaporation, is a form of phase transition, or shift in a state of matter. A substance transforms from a solid to a gas by sublimation without ever going through a liquid phase. A common example of sublimation is the dry ice, heavy CO2.

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