Free energy

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Free energy may refer to:

In science:

In economics:

  • Energy from sources that do not require an input which has to be paid for, (usually a sub-set of renewable energy)

In pseudoscience:

  • Free energy device
    • a hypothetical perpetual motion device that creates energy, thereby contradicting the laws of thermodynamics
    • a device of which a controversial claim is made that it taps an unconventional energy source not regarded as viable by the scientific community at large

In popular culture:

In music:

See also[edit]

  • Free-energy relationship - a relation between the reaction rate or equilibrium constants of two series of chemical reactions
  • Free energy perturbation - a method based on statistical mechanics that is used in computational chemistry for computing free energy differences
  • Free energy principle - a variational formulation of self-organisation in biological systems, applied in particular to neuroscience
  • Principle of minimum energy - a thermodynamic formulation based on the second law
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