Bond Enthalpies

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Vana Mirzakhani 3I
Posts: 62
Joined: Fri Sep 28, 2018 12:24 am

Bond Enthalpies

Postby Vana Mirzakhani 3I » Sat Mar 16, 2019 9:35 am

When solving bond enthalpies, what role do coefficients play? How do coefficients affect how we solve bond enthalpy problems? Thank you.

taryn_baldus2E
Posts: 62
Joined: Fri Sep 28, 2018 12:24 am

Re: Bond Enthalpies

Postby taryn_baldus2E » Sat Mar 16, 2019 9:43 am

In the case of bond enthalpy, stoichiometric coefficients play a role in informing you of how many of that molecule is present. With this information, you can then count how many of each type of bond there are. In the end, the delta H of the reaction will be given by delta H (bond breakage) - delta H (bond formation).

Diviya Khullar 1G
Posts: 59
Joined: Fri Sep 28, 2018 12:19 am

Re: Bond Enthalpies

Postby Diviya Khullar 1G » Sat Mar 16, 2019 10:39 am

The stoichiometric coefficients correspond to the number of bonds present and when you are using bond enthalpies to calculate enthalpy you need to know how many bonds and broken or formed. So, to calculate this you need to multiply the number of bonds present in one molecule by the stoichiometric coefficient.

CristinaMorales1F
Posts: 31
Joined: Fri Feb 16, 2018 3:01 am

Re: Bond Enthalpies

Postby CristinaMorales1F » Sat Mar 16, 2019 8:07 pm

What is the difference between bond enthalpies and standard reaction enthalpies?


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