Question

Give examples of sublimation.

Answer 1

Sublimation

1. Sublimation is a process of conversion of solid state directly into a gaseous state without converting it into liquid state.
2. It is a phase transition process that occurs at particular temperature and pressure.
3. This process is an endothermic process. (a process in which heat is absorbed by the system).
4. Examples: Dry ice sublimes, Iodine at $100°\mathrm{C}$ sublimates from solid to poisonous purple gas.
5. Iodine sublimes because their Vander Waals attraction is weak, and dry ice sublimes easily because at room temperature and normal pressure carbon dioxide is usually a gas.

Therefore, sublimation of dry ice, and Iodine are the examples of sublimation.