Science
Energy

What is free energy?

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2017-09-05 10:51:37

"Free_Energy" id="Free_Energy">Free Energy

Free energy may refer to:

In economy:

* Energy at no cost, like mechanic energy which drives wind

mill, or light in solar cell which is transormed into DC electric

current, i.e. wind power, water power, telluric power, and solar

power

In physics, the term thermodynamic free energy denotes the total

amount of energy in a physical system which can be converted to do

work, in particular:

* Helmholtz free energy, the amount of thermodynamic energy

which can be converted into work at constant temperature and

volume. In chemistry, this quantity is called work content

* Gibbs free energy, the amount of thermodynamic energy in a

fluid system which can be converted into work at constant

temperature and pressure. This is the most relevant state function

for chemical reactions in open containers

In engineering:

* Renewable energy, although most renewable energy sources would

not normally be called free energy sources

* energy which may be directly utilized (and returned) by a

device from the surroundings (electromagnetic free energy is

sometimes referred to as radiant energy)

* a primary energy source that is free (i.e. does not cost

anything) for consumption. Examples include wind power, water

power, telluric power, and solar power

In biology:

* Free energy (DNA) is the free energy pertaining to DNA

Free energy may also refer to:

* Free energy suppression is the notion that corporate energy

interests deliberately suppress technologies that may provide

energy at very little cost. Remaining so-far-unexploited forces of

nature which are well documented in the scientific literature

include telluric currents, atmospheric electricity, earth

batteries, and pressure system changes

* The energy from fantastical forces considered perpetual

motion. These devices utilize quantum vacuum perturbation, quantum

vacuum energy, rotating magnets, as well as some purported methods

to crack hydrogen

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