free energy


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free energy

n.
1. A thermodynamic quantity that is the difference between the internal energy of a system and the product of its absolute temperature and entropy; the capacity of a system to do work, as in an exothermic chemical reaction.
2. A thermodynamic quantity that is the difference between the enthalpy and the product of the absolute temperature and entropy of a system. Also called Gibbs free energy.

free energy

n
(General Physics) a thermodynamic property that expresses the capacity of a system to perform work under certain conditions. See Gibbs function, Helmholtz function
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.free energy - (physics) a thermodynamic quantity equivalent to the capacity of a physical system to do workfree energy - (physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs; "energy can take a wide variety of forms"
natural philosophy, physics - the science of matter and energy and their interactions; "his favorite subject was physics"
physical phenomenon - a natural phenomenon involving the physical properties of matter and energy
activation energy, energy of activation - the energy that an atomic system must acquire before a process (such as an emission or reaction) can occur; "catalysts are said to reduce the energy of activation during the transition phase of a reaction"
alternative energy - energy derived from sources that do not use up natural resources or harm the environment
atomic energy, nuclear energy - the energy released by a nuclear reaction
binding energy, separation energy - the energy required to separate particles from a molecule or atom or nucleus; equals the mass defect
chemical energy - that part of the energy in a substance that can be released by a chemical reaction
electrical energy, electricity - energy made available by the flow of electric charge through a conductor; "they built a car that runs on electricity"
energy level, energy state - a definite stable energy that a physical system can have; used especially of the state of electrons in atoms or molecules; "according to quantum theory only certain energy levels are possible"
rest energy - the energy equivalent to the mass of a particle at rest in an inertial frame of reference; equal to the rest mass times the square of the speed of light
work - (physics) a manifestation of energy; the transfer of energy from one physical system to another expressed as the product of a force and the distance through which it moves a body in the direction of that force; "work equals force times distance"
heat, heat energy - a form of energy that is transferred by a difference in temperature
mechanical energy - energy in a mechanical form
radiant energy - energy that is transmitted in the form of (electromagnetic) radiation; energy that exists in the absence of matter
radiation - energy that is radiated or transmitted in the form of rays or waves or particles
References in classic literature ?
He had no longer free energy enough for spontaneous research and speculative thinking, but by the bedside of patients, the direct external calls on his judgment and sympathies brought the added impulse needed to draw him out of himself.
A business awards scheme is looking for enterprising firms to enter - with the chance to claim a year's free energy as the top prize.
Nearly two million homes will get solar panels under a Labour government to help to provide free energy and save money for low-income households.
According to the spokesman of the university Shahzad Ahmad, dean faculty of Engineering presented his ideas and suggestions to improve the use of clean and free energy in Pakistan, particularly in South Punjab.
The negative Gibbs free energy (IGAdeg) calculated for any product at the studied means that it can be formed spontaneously if the kinetic conditions of that product are met.
There is provision for export of free energy in section 11.16.4 and 11.16.5, while there is complete silence with regard to consumption of the free energy in Nepal.
The free energy market will be the topic of a roundtable to be held in parliament on Tuesday, Nova TV reported.
The aim of the paper is to calculate, on the basis of the differential topological approach [6, 7], the higher free energy derivatives of the system from the second through the eighth inclusive in four concentration parameters for analyzing the four-component solid solution [Hg.sub.1-x][Mn.sub.x][Te.sub.1-y][Se.sub.y] for the existence of second-order phase coexistence spaces.
'Kite boarding is very popular in the Philippines and with the creation of this Carbon Free Fun movement which is called Xciting Palawan, we are promoting free energy sport,' she said.
The acid-base properties of materials are determined by the surface free energy (SFE), which according to Fowkes consists of several additive components [2]
The surface free energy of the asphalt binder can be used to characterize the work of cohesion [23,24].