Question

Write the name of any two substance that sublim

Answer 1

Answer:

naphthalene and dry ice sublime

Answer 2

$\Large{ \cdot{ \underline{ \rm{ \orange{What \: is \: sublimation?}}}}}$

The process in which, substances sublime is known as Sublimation. In this process, solid gets converted into vapours/gases or vice-versa, without undergoing into the liquid state. The reverse of sublimation in which gases get converted into solids is known as Deposition or Desublimation. Generally, the volatile solids undergo sublimation.

$\Large{ \cdot{ \underline{ \rm{ \green{Substances \: that \: sublime}}}}}$

Here, are the volatile solids that undergo sublimation.

• Ammonium chloride
• Anthracene
• Camphor
• Iodine
• Napthalene
• Dry ice (Solid Co2)

$\Large{ \cdot{ \underline{ \rm{ \orange{Know \: more \: about \: sublimation}}}}}$

The gaseous form, directly formed from a solid on heating, is known as Sublime. And the solid state of matter formed directly from its gaseous state on cooling, is called Sublimate. So, we can say that,

$\large{ \boxed{ \rm{ \purple{Solid_{(sublimate)} \red{\rightleftharpoons }\: Gas_{(sublime)}}}}}$

$\Large{ \cdot{ \underline{ \green{ \rm{Examples \: of \: sublimation}}}}}$

• Dry ice sublimes, it creates a cloudy layer which is used in stages and functions for illustration.
• The moth balls or napthalene balls that is used to repel the insects sublime after some days.
• In winter months, Snow or frost directly get converted into vapours without coming into liquid state.

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