Question

What happens to particles of ammonium chloride when it undergoes sublimation?

A) Particles gain energy, move faster, come closer and change to liquid state.
B) Particles gain energy, move faster, come closer and change to gaseous state.
C) Particles gain energy, move faster, go away from each other and change to gaseous state.
D) Particles lose energy and move far away from each other to change into gaseous state.

Answer 1

Required Answer:-

When any volatile solid like ammonium chloride undergo sublimation:

• Particles gain energy and move far away from each other to change into gaseous state. (Option C)

Explanation:-

Voltage solids means those having that can easily transform from its solid phase to its vapor phase without going through a liquid phase. It is because they have low boiling points.

For Example:

• Ammonium chloride
• Napthalene balls
• Anthracene
• Dry ice (Carbon dioxide)

These solids when heated or gains heat from the surroundings, increase their kinetic energy. The particles inside gets excited and move away from each other. Their Interparticular force of attraction breaks and solid changes to gas$.$

Answer 2

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Particles gain energy and move far away from each other to change into gaseous state. (Option C)

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If ammonium chloride is heated dissociation to form a product such as NH3 and HCI.

Some examples of Voltage solids that can be transform from its solid phase to its vapor are :-

• Ammonium chloride
• Napthalene balls
• Anthracene
• Some dry ice