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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
References in periodicals archive ?
This move has ended years of heated debate in the country over the reform, which aims to improve the functioning of the European Union's internal energy market.
Under the Process Plant Construction Permit, the company is allowed construction of the Corani process plant, waste and tailings co-disposal facilities, water storage system and auxiliary buildings, a laboratory, internal energy system as well as other complementary structures.
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.
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.
Encino, CA, September 19, 2014 --(PR.com)-- Systema Spetsnaz, the International school of Russian Special Forces combat (a Russian martial art), released 6.5 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.
They can be useful for safeguarding generation adequacy and for tackling security of supply, but they must be adapted to the development of the market and the development of new technologies, Borchardt said in Brussels during a keynote address at an Eurelectric conference on this topic."If these capacity mechanisms are not properly designed and coordinated at the EU level, then they will be counter-productive and will be a real danger to the completion of the internal energy market," he said.
EU Commissioner Joaquin Almunia said: "The Commission needs to investigate its impact on the UK and the EU internal energy markets." Ministers have handed French energy firm EDF, with the support of the Chinese, a PS16bn deal to construct two reactors at Hinkley Point.
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.