Power Thesaurus. (2015). scavenger thesaurus. Retrieved October 15, 2015, from http://www.powerthesaurus.org/scavenger/antonyms.
HEAT TRANSFER THROUGH CONVECTION. Like conduction and unlike radiation, convection requires a medium. However, in conduction the heat is transferred from one molecule to another, whereas in convection the heated fluid itself is actually moving. As it does, it removes or displaces cold air in its path.
This is the equivalent of saying that heat is the energy transferred from a hot system to a cold system. Before it is transferred, the energy which remains within the boundary of the system is not heat, but internal energy or total available energy.