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Sublimation, in physics, conversion of a substance from the solid to the gaseous state without its becoming liquid. An example is the vaporization of frozen carbon dioxide (dry ice) at ordinary atmospheric pressure and temperature.
Sublimation is the transition from the solid phase to the gas phase without passing through an intermediate liquid phase. This endothermic phase transition occurs at temperatures and pressures below the triple point.
The term sublimation refers specifically to a physical change of state and is not used to describe the transformation of a solid to a gas in a chemical reaction. For example, the dissociation on heating of solid ammonium chloride into hydrogen chloride and ammonia is not sublimation but a chemical reaction.
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.
Sublimation is the transition of a substance directly from the solid phase to the gas phase without passing through the intermediate liquid phase under specific conditions of temperature and pressure.
Sublimation in chemistry refers to the phase transition in which matter changes state from a solid immediately into a gas, without passing through an intermediate liquid phase. Sublimation occurs when atmospheric pressure is too low for a substance to exist in liquid form.
Sublimation is the process by which a substance transitions directly from the solid phase to the gaseous phase, bypassing the liquid phase. Sublimation is a physical process that takes place when the pressure of the surrounding atmosphere is insufficient to maintain a substance in its liquid state.
Sublimation typically occurs for substances with low intermolecular forces, allowing them to transition to gas directly. Common examples of sublimation include dry ice (solid carbon dioxide) changing into carbon dioxide gas and iodine crystals transitioning into iodine vapor.
Sublimation is an analogous process to boiling, as it occurs when a compound's vapor pressure equals its applied pressure (often the atmospheric pressure). The difference is that sublimation involves a solid's vapor pressure instead of a liquid's.
Sublimation is the term for when matter undergoes a phase transition directly from a solid to gaseous form, or vapor, without passing through the more common liquid phase between the two. It is a specific case of vaporization.