break open vs come apart

break open and come apart both are verbs.

Word	Noun	Adjective	Verb	Adverb
break open	No	No	Yes	No
come apart	No	No	Yes	No

As verbs, come apart is a hypernym of break open; that is, come apart is a word with a broader meaning than break open:

Other hypernyms of break open include break, fall apart, separate, split up.

break open (verb)	come apart (verb)
erupt or intensify suddenly	become separated into pieces or fragments
come open suddenly and violently, as if from internal pressure
open with force