inter'nal en'ergy

a function of thermodynamic variables, as temperature, that represents the internal state of a system that is due to the energies of the molecular constituents of the system. The change in internal energy during a process is equal to the net heat entering the system minus the net work done by the system. Symbol: U

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

internal earinternal exile

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