## Bond Lengths

Kira Conde 2O
Posts: 24
Joined: Fri Jul 15, 2016 3:00 am

### Bond Lengths

Is a double bond between the same element stronger than a triple bond between two separate elements? I know that a triple bond is usually stronger, but I don't know if that is just for the same element. The example that I had a problem with a double bonded O atom and a C triple bonded to a N. Which one has the stronger bond and why?

Chem_Mod
Posts: 17949
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 406 times

### Re: Bond Lengths

If you are asking about C$\equiv$N vs N=O then the triple bond will be stronger in this case. Oxygen and Carbon are close enough to each other that the triple bond is stronger than the double bond (like usual) but there are cases where a triple bond between element X and element Y is weaker then a double bond between element Z and element Y

Patrick Wilson 2B
Posts: 22
Joined: Wed Sep 21, 2016 3:00 pm

### Re: Bond Lengths

So if we are trying to find which bond is stronger between a double bond and a single bond do we base it on the electronegativity of the elements or simply on the fact that one is a double bond so it must be stronger ?

Rishi_Kayathi_1E
Posts: 24
Joined: Wed Sep 21, 2016 2:59 pm

### Re: Bond Lengths

Generally, a triple bond is stronger than a double which in turn is stronger than a single bond. However, to know for sure we must look at the bond disassociation energies to find out which one is the strongest.