In thermodynamics, energy flow is an oft-used, albeit ill-defined, term referring to the movement of one type of energy, e.g. bond energy, potential energy, into that of another type, e.g. kinetic energy, diffusion mechanisms. The term is frequently used in biology and ecology to the effect that various “energy flows” mediate life or an ecosystem. The typical example being a verbal description of how "energy" enters the biosphere via photosynthesis then flows through the various food chains.

In 1988, American physicist Ronald Fox used the 1941 Fritz Lipmann ATP energy currency model to argue that “energy flow” is key to the existence to life’s dynamic molecular state. [1] Americans ecologist Eric Schneider and biophysicist Harold Morowitz also use the concept of energy flow to a significant extent. [2]

See also
Csíkszentmihályi flow
Entropy flow
Gibbs energy flow
Thermodynamic flow

References
1. Fox, Ronald F. (1988). Energy and the Evolution of Life (pg. 5). New York: W.H. Freeman and Co.
2. (a) Schneider, Eric D. and Sagan, Dorion. (2005). Into the Cool - Energy Flow, Thermodynamics, and Life. Chicago: The University of Chicago Press.
(b) Morowitz, Harold J. (1968). Energy Flow in Biology: Biological Organization as a Problem in Thermal Physics. Academic Press.

External links
Energy flow – Wikipedia.

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