Question

Observation of sublimation of ammonium chloride

Answer 1

In sublimation no liquid state is observed. This is a reversible process. Ammonium chloride is the molecule which on heating changes directly into gaseous state. When vapours of Ammonium chloride collected then solid Ammonium chloride is formed.

Answer 2

The observation of Sublimation of Ammonium chloride is:-

• The process of changing of a solid directly into vapours on heating and changing - vapours into solid on cooling is called Sublimation.
• Ammonium chloride sublimes on heating. This means that solid Ammonium chloride (solid-state) gets converted directly into vapours or gas on heating.
• There is no liquid state in the process of sublimation.
• The solid substance of Ammonium chloride that undergoes the process of sublimation is called Sublime.
• The ammonium chloride solid obtained by cooling the vapour of the solid is called Sublimate.

• ON HEATING

Ammonium Chloride (solid) ---->Ammonium Chloride (vapour)

• ON COOLING

Ammonium Chloride (vapour)-----> Ammonium chloride (solid)

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