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In terms, active (LH:#), from act-, meaning: “process of doing”, + -ive, meaning: “that preforms or tends towards an action", refers to producing or involving action or movement, as distinct from mere existence or state.[1]


The following are quotes:

“Given the unlimited validity of Clausius' law it would then be the value of the free energy, not that of the total energy resulting from heat production, which determines in which sense the chemical affinity can be active.”
Hermann Helmholtz (1882), “On the Thermodynamics of Chemical Processes”[2]

End matter

See also


  1. active – Merriam-Webster.
  2. Helmholtz, Hermann. (1882). “On the Thermodynamics of Chemical Processes” (pdf), in: Physical Memoirs Selected and Translated from Foreign Sources, 1: 43-97. Physical Society of London, Taylor and Francis, 1888.

External links

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