Question

science it's urgent give the answer

Answer 1

Answer:

Sublimation is the conversion between the solid and the gaseous phases of matter, with no intermediate liquid stage.

Example : dry ice, naphthalene balls etc.

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Answer 2

Answer:

pls mark as BRAINLIEST

Sublimation is the transition of a substance directly from the solid to the gas state, without passing through the liquid state.

NH4Cl(c) → NH3(g) + HCl(g)

Explanation:

Complete step by step answer:

chemical equation

NH4Cl(c) → NH3(g) + HCl(g)

> Ammonium chloride on heating directly converts into vapour. This process is called sublimation. In contrast to this, common salt is not sublime.

So from a mixture, containing ammonium chloride and common salt, ammonium chloride can be easily separated by the process of sublimation. On heating ammonium chloride converts into vapour leaving behind the non-volatile component, Salt. On cooling the vapour of ammonium chloride changes into solid.

> In the process of sublimation, the compound which converts from solid to directly in the vapour is called sublimate. Hence, on heating ammonium chloride, it gets converted into white vapours. The gaseous form of ammonium chloride can be cooled easily to get a pure solid.

Note: We can separate the mixture of sand and ammonium chloride by the method of sublimation.As ammonium chloride is a sublimable substance whereas the sand is not. So ammonium chloride will sublimate and the sand will remain left behind, thus we get both the components separately.