Standard Enthalpy

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Standard Enthalpy

Postby JukaKim_1D » Fri Jan 15, 2016 10:58 am

What is the difference between standard enthalpy of formation and standard enthalpy of reaction?

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Re: Standard Enthalpy

Postby Chem_Mod » Fri Jan 15, 2016 11:05 am

Standard enthalpy of reaction is just what it sounds like: the heat transferred at a constant pressure to convert reactants to products.

The standard enthalpy of formation is just this, but for a special reaction: The formation of one mole of a substance from its pure elements at 1 atm and 298 K.

Return to “Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)”

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