Understanding Well Depth and Its Relationship to Bond Energy

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In summary, the conversation discusses the concept of a "well depth" or "depth of the well" in relation to energy and bonds. The term is commonly used to describe the energy of bonds and can be visualized as a hole in the ground. It is also mentioned in the context of quantum mechanics and the Lenard-Jones potential. The deeper the well, the stronger the bond.
  • #1
mather
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hello!

what is actually the "well depth" or the "depth of the well" ?

maybe it doesn't help that english is not my native language, but anyway, I can't find some reference

I found the term to be used in context of describing the energy of the bonds

thanks!
 
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  • #2
I can't way for sure without knowing the context, but a well is a hole in the ground from which you draw or pump water. But it could mean something else in another context.
 
  • #3
Sounds like your are talking about the energy well that exist in a tiny region of space surrounded by regions of higher potential energy. A place that a particle gets stuck because it needs kenetic energy to escape. Which is suppose described a hole in the ground as well.
 
  • #4
in Lenard-Jones potential ?
 
  • #5
Pick up a book in quantum mechanics, it will explain everything much better than we can.
 
  • #6
In a graph of energy versus position, there can be a region of space where the energy is lower than other nearby regions. Graphically, this looks like a hole in the ground and if you want to picture things classically you can think about an electron being a ball trapped in the hole (an electron in a bond, say) that needs some energy put into it to get it out of the hole (break the bond). The deeper the well, the stronger the bond.
 

1. What is well depth?

Well depth refers to the depth at which a particle or molecule is most stable within a potential energy well. In other words, it is the lowest point in the potential energy curve where the particle or molecule is most likely to be found.

2. How is well depth related to bond energy?

The well depth is directly related to the bond energy between two atoms or molecules. A deeper potential energy well indicates a stronger bond, while a shallower well indicates a weaker bond. Therefore, the well depth can be used as a measure of the strength of a chemical bond.

3. What factors influence well depth?

The well depth is influenced by several factors, including the distance between the two atoms or molecules, the type of atoms or molecules involved, and the electronic and steric effects of surrounding atoms or molecules. These factors affect the potential energy curve, which in turn affects the well depth.

4. How does well depth affect the stability of a molecule?

The deeper the potential energy well, the more stable the molecule is. This is because a deeper well indicates a stronger bond, making it more difficult for the molecule to break apart. On the other hand, a shallower well indicates a weaker bond and a less stable molecule.

5. Can well depth be manipulated?

Yes, well depth can be manipulated through various methods such as changing the distance between atoms or molecules, altering the electronic or steric effects, or introducing external forces. This manipulation can result in changes to the potential energy curve and ultimately, the well depth.

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