Hess's law

noun
\ ˈhesə̇z- \

Definition of Hess's law

: a statement in chemistry: the heat change in a chemical reaction is the same regardless of the number of stages in which the reaction is effected

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History and Etymology for Hess's law

after Henry Hess

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Cite this Entry

“Hess's law.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/Hess%27s%20law. Accessed 12 December 2019.

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