Bond Enthalpies

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Abby Ellstrom 1I
Posts: 53
Joined: Fri Sep 29, 2017 6:04 am

Bond Enthalpies

Postby Abby Ellstrom 1I » Sun Jan 21, 2018 10:11 pm

Why when a bond enthalpy for a molecule is greater than that of another one is the the molecule more stable?

snehabhargava
Posts: 52
Joined: Thu Jul 13, 2017 2:00 am

Re: Bond Enthalpies

Postby snehabhargava » Sun Jan 21, 2018 10:14 pm

Because when the bond enthalpy is less it takes less energy to break therefore, it is less stable. Bonds that take more energy are more stable because more energy is need to break the bonds.

Allison Young 1K
Posts: 23
Joined: Fri Sep 29, 2017 6:06 am

Re: Bond Enthalpies

Postby Allison Young 1K » Sun Jan 21, 2018 10:43 pm

Adding onto what Abby said. If something is harder to break, then it is more stable. If you need more energy to break something, then it is harder to break.

Wenxin Fan 1J
Posts: 53
Joined: Thu Jul 13, 2017 2:00 am

Re: Bond Enthalpies

Postby Wenxin Fan 1J » Sun Jan 21, 2018 10:45 pm

More stable bonds have more negative (less) potential energies, which means more energy is required to break the bonds. Therefore bonds with greater potential energy (less negative) are less stable and require less energy to break.

Sarah Clemens 1B
Posts: 19
Joined: Fri Sep 29, 2017 6:03 am

Re: Bond Enthalpies

Postby Sarah Clemens 1B » Sun Jan 28, 2018 8:01 pm

Hi Abby!!! Your question is really good. The reason it is more stable is because the bonds are harder to break!

Kayla Tchorz-Dis 1F
Posts: 30
Joined: Thu Jul 13, 2017 2:00 am

Re: Bond Enthalpies

Postby Kayla Tchorz-Dis 1F » Sun Jan 28, 2018 10:22 pm

The stronger the bonds, the more energy it takes to require to break the bonds, therefore having a higher bond enthalpy.

Ridhi Ravichandran 1E
Posts: 35
Joined: Sat Jul 22, 2017 2:01 am

Re: Bond Enthalpies

Postby Ridhi Ravichandran 1E » Sun Jan 28, 2018 10:23 pm

If it takes more energy to break the bond, that means the bond is very stronger, and the attraction between the nuclei of the atoms is also very strong. According to Coulomb's law, stronger attractions mean a lower energy arrangement, which means more stability. Thus strong, high energy bonds have a lot of stability.

Justin Bui 2L
Posts: 51
Joined: Fri Sep 29, 2017 6:06 am

Re: Bond Enthalpies

Postby Justin Bui 2L » Mon Jan 29, 2018 1:18 am

Stability is an indicator of how strong bonds are because the more stable something is, the more resistant it is to perturbations. So strong bonds should be able to withstand or require more energy in order to break them.


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