# For each change of state, what is the opposite change of state: condensation, freezing, deposition?

Jul 19, 2017

Well, $\text{boiling}$ is the opposite process to $\text{condensation}$......

$\text{Liquid "stackrel("Boiling")rarr" Vapour}$;

$\text{Vapour "stackrel("Condensation")rarr" Liquid}$.

#### Explanation:

And a posh word for $\text{boiling}$ is $\text{ebullition}$ (the study of boiling point, and its use in analysis is called $\text{ebullioscopy}$).

And, $\text{melting}$ is the opposite process to $\text{freezing}$......

And the transition solid to gas is $\text{sublimation}$....

$\text{Solid}$ stackrel("sublimation")rarr" Gas"

$\text{Gas}$ stackrel("deposition")rarr" Solid"

When a solid material is collected after sublimation (and deposition), the material (usually very pure) is called the $\text{sublimate}$.