kinetic theory vs kinetic theory of gases

kinetic theory and kinetic theory of gases both are nouns.

Word	Noun	Adjective	Verb	Adverb
kinetic theory	Yes	No	No	No
kinetic theory of gases	Yes	No	No	No

As nouns, kinetic theory and kinetic theory of gases are synonyms defined as:

kinetic theory and kinetic theory of gases: (physics) a theory that gases consist of small particles in random motion

kinetic theory (noun)	kinetic theory of gases (noun)
(physics) a theory that gases consist of small particles in random motion	(physics) a theory that gases consist of small particles in random motion