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Jina Kwon
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Joined: Fri Aug 09, 2019 12:15 am


Postby Jina Kwon » Sat Feb 08, 2020 4:27 pm

In this problem, why is N2 gas and O2 gas excluded from the equation?

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Re: 4D9

Postby ShastaB4C » Sat Feb 08, 2020 5:55 pm

The enthalpy of formation for diatomic molecules =0

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Re: 4D9

Postby JChen_2I » Sat Feb 08, 2020 10:59 pm

Because N2 and O2 are already in their most stable form so their standard reaction of enthalpy by definition is 0.

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