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internal energy
noun
, Thermodynamics.
- 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. : U
internal energy
noun
- the thermodynamic property of a system that changes by an amount equal to the work done on the system when it suffers an adiabatic change. It is the sum of the kinetic and potential energies of its constituent atoms, molecules, etc UE
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Word History and Origins
Origin of internal energy1
First recorded in 1885–90
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Compare Meanings
How does internal energy compare to similar and commonly confused words? Explore the most common comparisons:
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Example Sentences
Electrons differ in their opinions as to whether man will succeed in drawing upon this internal energy of the atom.
From Project Gutenberg
Vigor, which may be defined as internal energy, must not be confused with size.
From Project Gutenberg
Is it the light, or in the stores of internal energy possessed by the molecule?
From Project Gutenberg
For these cliffs have risenso the geologists tell usthrough their own internal energy to their present proud position.
From Project Gutenberg
There was a thought that a mere circumstance or necessity could determine the exercise of an internal energy.
From Project Gutenberg
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