Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A relationship in physical chemistry stating that the total enthalpy change during the complete course of a reaction is the same whether the reaction is made in one step or in several steps.

Etymologies

from Wiktionary, Creative Commons Attribution/Share-Alike License

Named after Germain Hess, Swiss-born Russian chemist and physician, who published it in 1840.

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