vaporization vs state change

vaporization and state change both are nouns.

Word	Noun	Adjective	Verb	Adverb
vaporization	Yes	No	No	No
state change	Yes	No	No	No

As nouns, state change is a hypernym of vaporization; that is, state change is a word with a broader meaning than vaporization:

vaporization: the process of becoming a vapor
state change: a change from one state (solid or liquid or gas) to another without a change in chemical composition

Other hypernyms of vaporization include phase change, phase transition, physical change.

vaporization (noun)	state change (noun)
annihilation by vaporizing something	a change from one state (solid or liquid or gas) to another without a change in chemical composition
the process of becoming a vapor