Hess law

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Hess law

(hes),
the amount of heat generated by a reaction is the same whether the reaction takes place in one step or several steps; that is, ΔH values (and thus ΔG values) are additive.
[Germain Henri Hess]
Farlex Partner Medical Dictionary © Farlex 2012

Hess law

(hes law)
The amount of heat generated by a reaction is the same whether the reaction takes place in one step or several steps; i.e., ΔH values (and thus ΔG values) are additive.
[Germain Henri Hess]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
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References in periodicals archive ?
In 1840 he announced what is now known as Hess's law; that the amount of heat developed (or absorbed) in going from substance A to substance B is always fixed, regardless of the route by which the change is brought about.
Hess's law made it seem that the laws of thermodynamics, which had been developed from the study of heat engines, might hold for chemical reactions too.
An Accessible, Novel Algorithm to Solve Hess's Law Problems.