Std Enthalpy of Formations

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804994652
Posts: 68
Joined: Fri Sep 28, 2018 12:26 am

Std Enthalpy of Formations

Postby 804994652 » Tue Feb 12, 2019 7:45 pm

Why is it that molecules like O2 and N2 not included when trying to figure out enthalpy of a reaction...?

Alexa Tabakian 1A
Posts: 38
Joined: Fri Sep 28, 2018 12:20 am

Re: Std Enthalpy of Formations

Postby Alexa Tabakian 1A » Tue Feb 12, 2019 8:02 pm

Their heat of formation is zero because they are in their most stable state, that is why they are not included.


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