Calculating delta H of a reaction

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Julia_Gordon_2A
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Joined: Wed Sep 21, 2016 2:57 pm

Calculating delta H of a reaction

Postby Julia_Gordon_2A » Fri Jan 27, 2017 7:49 pm

When calculating the delta H of a reaction from the delta H of formation values, are gases included in the calculation? In question 9.59, the solution shows the calculation but omits the value for O2.

Jessica Chern 1H
Posts: 22
Joined: Sat Jul 09, 2016 3:00 am

Re: Calculating delta H of a reaction

Postby Jessica Chern 1H » Fri Jan 27, 2017 11:24 pm

That's because the enthalpy of formation for elements in their most stable form equals 0. O2 is the most stable form for oxygen.

904826427
Posts: 16
Joined: Wed Sep 21, 2016 2:55 pm

Re: Calculating delta H of a reaction

Postby 904826427 » Tue Feb 14, 2017 7:49 pm

Jessica Chern 1H wrote:That's because the enthalpy of formation for elements in their most stable form equals 0. O2 is the most stable form for oxygen.



Is that also with entropy and gibbs?


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