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Sublimation is a physical change, not a chemical change. The best known example is when dry ice, which is solid carbon dioxide, turns into a vapor, which is just carbon dioxide gas. It skips over the liquid phase. Because you're just changing from one state of matter to another, it's a physical change just like melting ice or boiling water.
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Is sublimation of sodium chloride chemical or physical change?
Sublimation is a physical change.
Explain why sublimation is regarded as a physical change but the slaking of lime is considered as a chemical change?
- Sublimation don't change the molecule; solid iodine or sublimated iodine are iodine. - Slaking of lime transform the calcium oxide in calcium hydroxide. A chemical change occur.
Why are sublimation and deposition are classified as physical changes?
Because sublimation and deposition doesn't change the chemical nature of the molecule.
Is sublimation of ammonium chloride a physical change or a chemical change?
Sublimation of any pure substance such as ammonium chloride by definition is a physical change, because sublimation is defined as passage of substance from the solid to the gas phase without passing through an intermediate liquid phase.
What do you call the chemical change of solid and gas?
The PHASE change of solid TO gas is called Sublimation.
