Concept:Sublimation is the process in which a solid changes directly into gas without passing through the liquid state.
Explanation:A substance that undergoes this change is said to sublime.
During sublimation, the solid absorbs heat energy and its particles gain enough kinetic energy to escape directly into the gaseous phase.
No liquid phase appears at any stage.
Common examples include solid carbon dioxide (
CO2), commonly called dry ice, and iodine.
Camphor and naphthalene also sublime when heated.
The reverse process, where gas changes directly to solid, is called deposition.
Since the question describes the direct solid-to-gas transition, the correct term is "sublime."
Answer:C. sublime