Question

$\ What \: is \: sublimation$?​

Answer 1

Answer:

Sublimation is the direct transition from the solid state to vapor, and the heat absorbed by it is equal to the sum of the latent heats of fusion and of vaporization.

Answer 2

Answer:

Sublimation is the conversion between the solid and the gaseous phases of matter, with no intermediate liquid stage. ... The opposite of sublimation is "deposition", where water vapor changes directly into ice—such a snowflakes and frost.