Share this entry

Share this page

internal energy

Line breaks: in|tern¦al en¦ergy

Definition of internal energy in English:

noun

[mass noun] Physics
The energy in a system arising from the relative positions and interactions of its parts.
Example sentences
  • Thermodynamics is the study of the inter-relation between heat, work and internal energy of a system.
  • If all you know of this system is that its internal energy is E and its volume is V, then clearly there are many, many different states the system could be in.
  • Atoms give up excess internal energy by giving off photons as electrons return to lower energy orbits.

Definition of internal energy in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day cumbersome
Pronunciation: ˈkʌmbəs(ə)m
adjective
large or heavy and therefore difficult to carry…