phase transition vs phase change

phase transition and phase change both are nouns.

Word	Noun	Adjective	Verb	Adverb
phase transition	Yes	No	No	No
phase change	Yes	No	No	No

As nouns, phase transition and phase change are synonyms defined as:

phase transition and phase change: a change from one state (solid or liquid or gas) to another without a change in chemical composition

Other synonyms of phase transition include physical change, state change.

phase transition (noun)	phase change (noun)
a change from one state (solid or liquid or gas) to another without a change in chemical composition	a change from one state (solid or liquid or gas) to another without a change in chemical composition