Question

Change of gaseous state directly to solid state without going through liquid sate is
called
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Answer 1

Añswer

Change of gaseous state directly to solid state without going through liquid sate is called sublimation.

e.g Naphthalene,Camphor etc.

Advantage of sublimation :-

• Solvents are not used.
• The minimum amount of proproduis lost.
• Most traces of any solvent is compound are effectively eliminated.
• The main advantage of sublimation is purification process.

Answer 2

Answer:

Change of gaseous state directly to solid state without going through liquid state is called deposition.

Nunchuk hitz:- (More to know)

Deposition and Sublimation are two processes. They deal in changing of matter from Solid to gas and vice-versa.

*Deposition occurs while a matter changes itself from gas to solid or when gases receive a cold temperature or high pressures.

Example: Changing of CO2 from gas to solid when stored in 1 atm (atmosphere).

[1 atm = 1.05 × 10^5 Pa]

*Sublimation is totally opposite of deposition. When a solid receives heat energy, it gets caught converted into gas.