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Topic: Bond disassociation/enthalpy question  (Read 3339 times)

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patricio2626

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Bond disassociation/enthalpy question
« on: April 24, 2006, 10:30:08 PM »
Hi all!

Another question, if you don't mind.  What I have here in front of me (my vague text) says that Delta H rxn = Sigma D for all products - Sigma D for all reactants.  So, does this mean that if we take the difference of the bond disassociation energies from both sides, that will be the enthalpy change for the reaction?  Thanks in advance!

 -Patrick

Offline Albert

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Re: Bond disassociation/enthalpy question
« Reply #1 on: April 25, 2006, 06:45:15 AM »
I'm not sure to have understood your question.  :-[

You can calculate your deltaH of reaction using the difference in between the sum of the energies of the broken bonds and that of the formed ones.

patricio2626

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Re: Bond disassociation/enthalpy question
« Reply #2 on: April 25, 2006, 08:20:36 PM »
Yes, you answered my question, so I guess you understood correctly... thanks!

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