Hess's Law

Tags

Chem/Reaction

Cegep/2

Word count

49 words

Reading time

1 minute

Change in enthalpy is the same whether a reaction happens in one step or in multiple steps.

$$\mathrm{\Delta }{H}_T=\sum a_i\mathrm{\Delta }{H}_i$$

Consequences

1. Reversed reaction has opposite $\mathrm{\Delta }H$ sign.
2. Quantity of reaction is proportional to $\mathrm{\Delta }H$.

Contributors

Ajitani Hifumi

Changelog

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