Free energy may be categorised as renewable energy, although most renewable energy sources would not normally be called free energy sources or sources of perpetual motion.
Free energy
In thermodynamics, free energy is a measure of the amount of work that can be extracted from a system. In this sense, it measures not the energy content of the system, but the "useful energy" content.
free energy
A quantity of energy that interrelates entropy (S) and the system's total energy (H); symbolized by G. The change in free energy of a system is calculated by the equation G = ΔH - T ΔS, where T is absolute temperature.
Free energy A form of energy capable of doing work under conditions of constant temperature and pressure. Also, a measure of the usable energy generated in a chemical reaction; denoted by the symbol G in thermodynamics.
free energy
E.
equal to the entropy times the absolute temperature ...
free energy(G) - energy that can be extracted from a system to drive reactions. Takes into account changes in both energy and entropy.
free energy. The energy available for doing work in a chemical system.
free-running rhythm The activity cycle that an animal exhibits when placed in a constant environment; its period is different from any known cyclic environmental variable.
AKA: free energy of activation
Energy needed to initiate a chemical reaction.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
What is free energy?
It is energy that can be harnessed to do work. The water stored behind a dam has free energy. When allowed to fall through a turbine, it can generate electricity (another form of free energy).
We have also used the free energy of folding as a structural parameter representing double helicity in RNA sequences.
balance a condition in which no further net change is occuring in a system, and free energy is minimimal.
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 See also: Trans, Action, Molecule, Lysis, Organ
  
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