specific heat vs heat energy

specific heat and heat energy both are nouns.

Word	Noun	Adjective	Verb	Adverb
specific heat	Yes	No	No	No
heat energy	Yes	No	No	No

As nouns, heat energy is a hypernym of specific heat; that is, heat energy is a word with a broader meaning than specific heat:

specific heat: the heat required to raise the temperature of one gram of a substance one degree centigrade
heat energy: a form of energy that is transferred by a difference in temperature

Other hypernyms of specific heat include heat.

specific heat (noun)	heat energy (noun)
the heat required to raise the temperature of one gram of a substance one degree centigrade	a form of energy that is transferred by a difference in temperature