Question

sublimation experiment

Answer 1

SUBLIMATION :

Sublimation is the transition of a substance directly from the solid to the gas state, without passing through the liquid state. ... The reverse process of sublimation is deposition or desublimation, in which a substance passes directly from a gas to a solid phase.

EXPERIMENT :

• Take some Ammonium chloride powder in a dish .
• Cover the china dish with inverted funnel and put a cotton plug in end of funnel so that vapours do not escape .
• Set up the apparatus as shown .
• Heat the dish with burner .
• Solid ammonium chloride changes into vapours .