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bond lengths

Posted: Tue Oct 29, 2019 11:14 am
by josmit_1D
why do single, double, and triple bonds have different lengths?

Re: bond lengths

Posted: Tue Oct 29, 2019 11:18 am
by Benjamin Feng 1B
The more electrons that interact with the bond, the stronger the attraction of the electrons to the nucleus, meaning that the 2 nuclei get pulled closer together and are shorter.

Re: bond lengths

Posted: Tue Oct 29, 2019 12:08 pm
by Cynthia Gong 1L
Double and Triple bonds have more electrons, so they exert a stronger attractive force on the nuclei of the other atom, thus pulling the two atoms close together and reducing the bond length.

Re: bond lengths

Posted: Tue Oct 29, 2019 12:12 pm
by Alexa Hernandez 3k
The more Bonds means a stronger pull so consequently you also get a smaller length because of the increased attraction.

Re: bond lengths

Posted: Tue Oct 29, 2019 1:21 pm
by Mariah
Alexa Hernandez 3k wrote:The more Bonds means a stronger pull so consequently you also get a smaller length because of the increased attraction.


So the smaller the bond, the stronger it is?

Re: bond lengths

Posted: Thu Oct 31, 2019 9:08 pm
by Cassandra_1K
Can someone please explain and give an example of bond dissociation energy?

Re: bond lengths

Posted: Fri Nov 01, 2019 12:12 pm
by ABombino_2J
Bond dissociation is the energy required to break a chemical bond. For example, to break an H--H bond, the bond dissociation energy is 436D.

Re: bond lengths

Posted: Fri Nov 01, 2019 12:49 pm
by Junxi Feng 3B
Obviously, they do not have the same length. Single bond has the longest bond length, and triple bond has the shortest bond length. This also has something to do with bond strength.

Re: bond lengths

Posted: Fri Nov 01, 2019 1:06 pm
by Rory Simpson 2F
Mariah wrote:
Alexa Hernandez 3k wrote:The more Bonds means a stronger pull so consequently you also get a smaller length because of the increased attraction.


So the smaller the bond, the stronger it is?


A stronger bond will typically be shorter and have a larger dissociation energy because there are more electrons acting in the bond, making the attraction stronger.

Re: bond lengths

Posted: Fri Nov 01, 2019 1:26 pm
by Hannah Romano 4D
single bonds are the longest. then double bonds are shorter. triple bonds are shortest. additionally, the shorter the bond the stronger it is.

Re: bond lengths

Posted: Fri Nov 01, 2019 1:28 pm
by Charysa Santos 4G
The bond length is determined by how many bonded electrons there are. The more electrons are bonded (i.e. a triple bond in which 6 electrons are bonded), the shorter the bond length. That means that a triple bond has the shortest length (and has the most attraction/energy bringing the two atoms together), double bonds have the second shortest length, and single bonds have the longest lengths.