internal energy


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internal energy

n. Symbol U
The sum of kinetic, potential, chemical, electrical, nuclear, and other energy associated with the atoms and molecules of a system. An increase in internal energy results in a rise in temperature or a change in phase.

internal energy

n
(Chemistry) 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. Symbol: U or E
References in periodicals archive ?
What has to be done within the EU is the increase in efficient use and development of the natural gas infrastructure, on the one hand, and finalisation of internal energy market, on the other hand," says Andrius Simkus, gas expert at Vienna-based Energy Community Secretariat, an international organisation dealing with energy policy in Europe and worldwide.
These measures comprise of moderating energy demand, raising energy production in Europe (including from renewable), moreover developing a well-functioning and fully integrated internal energy market, and diversification of energy sources, suppliers and routes.
BRUSSELS, March 5 (KUNA) -- The EU Energy Council met here Thursday and exchanged views on the energy union and other issues such as energy security, completion of the internal energy market and energy efficiency.
5 hours of instructional video which includes harsh striking techniques and soft internal energy exercises with the final goal of reaching the highest mastery of martial arts: No Contact Combat.
Then studies look at the energy policy priories, the internal energy market, the security of supply, renewable and climate action, energy efficiency, shale gas, and competition policy and the energy markets.
Her comments followed a similar statement by Klaus-Dieter Borchardt, a director responsible for the internal energy market at the Commission, in January.
Capacity mechanisms - meant to ensure stable electricity supply in case of shortages - which are not well designed can threaten the future of the European Union's single energy market, Klaus-Dieter Borchardt, the European Commission's director of the internal energy market said, on 12 December.
EU Commissioner Joaquin Almunia said: "The commission needs to investigate its impact on the UK and the EU internal energy markets.
In one, researchers looked at the internal energy of a black hole, the position of its event horizon (the boundary between it and the universe) and a number of other properties based on the string theory.
In one paper, Hyakutake computes the black holes internal energy, the position of its event horizon, its entropy and other properties that are based on the predictions of string theory as well as the effects of so-called virtual particles that continuously pop into and out of existence.
Romania backs Lithuania's aspirations to complete the EU internal energy market, implement the Third Energy Package, and eliminate energy isolation of some regions.