Talk:Bond energy

Name change

The "chemistry" disambiguation is unnecessary because Bond energy is just a redirect to this article. I propose that the name be changed to "bond energy" or to "bonding energy", with a redirect from bond energy. Does anyone object, or have a preference for the new name? -- Kjkolb 09:23, 19 December 2005 (UTC)

Discussion

• Seems a pointless redirect, so I have no objections! Since this doesn't seem to be a controversial move, I'm not creating a "Voting" subheading, if anyone opposes the move, please do create a new subheading! --Lox (t,c) 18:35, 13 January 2006 (UTC)
• Strongest Possible Swift and Speedy Do It No controversy at all. I'll do it. --James S. 08:25, 16 January 2006 (UTC)

Done. --James S. 08:27, 16 January 2006 (UTC)

Bond List

cant we add a bond list? — Preceding unsigned comment added by 217.208.245.222 (talk • contribs) 19:27, 4 April 2006 (UTC)

Already added Winwiwil123 (talk) 13:15, 24 October 2019 (UTC)

And apparently deleted since. 2600:8800:1180:25:8948:2FBB:89F5:6770 (talk) 17:08, 24 November 2023 (UTC)

Chemical

We shouldnt in avarege bond energy specefy for wich molecule it is, because then its limited to that molecule only such as

• bond energies CH₃X: H (105,440) F (109,452) Cl (84,352) Br (70,293) I (56,236) OH (91,382) NH₂ (87,365)

to limited to CH₃X

If you have additional data please add them (with a reference)). Deleting the existing data should not be the course of action V8rik 15:59, 10 July 2006 (UTC)

I have, i´ll add it and remove that part then

I added it but not in CH₃X form and also the unit is kcal per mole Winwiwil123 (talk) 14:29, 24 October 2019 (UTC)

Water discrepancy?

There seems to be a somewhat significant discrepancy between the O-H bond energy in water mentioned in the text (458.9 kJ/mol) versus the value from the table (498 kJ/mole). Does anyone have an explanation for this discrepancy? Thanks.--GregRM 19:17, 25 January 2007 (UTC)

I dont know about that but in my example I use 463 kJ/mole Winwiwil123 (talk) 14:31, 24 October 2019 (UTC)

Newer CRC?

Does anyone have a newer CRC than the 65th edition to use as the data source?--74.61.4.8 23:37, 2 September 2007 (UTC)

Okay , So I added 97th edition of the CRC but only to definition of Bond Energy. This is the link to full free file http://www.softouch.on.ca/kb/data/CRC%20Handbook%20of%20Chemistry%20and%20Physics%20-%2097th%20Edition%20(2016).pdf Winwiwil123 (talk) 13:49, 28 October 2019 (UTC)

Factors affecting bond energy

I believe that this would be key useful information. I came across the answer off another site, and thus I added it to this Wiki article. I do believe however that my added sub-section could be greatly improved upon by one with greater knowledge, I'm nothing more then a high school senior... 99.240.21.3 17:00, 28 October 2007 (UTC)Adam

Thank you very much I will keep it Winwiwil123 (talk) 14:32, 24 October 2019 (UTC)

Proposed merge with Bond strength

The bond strength article is very short, for some reason. Wouldn't it sound great if we merge it with bond energy? They are technically talking about the same thing, just different words and a different title... DSCrowned^(Talk) 05:32, 30 October 2014 (UTC)

Someone already done it Winwiwil123 (talk) 13:17, 24 October 2019 (UTC)

Measurable quantity

Is this quantity directly measurable? If yes, what measuring methods are available to this purpose?193.231.20.25 (talk) 12:28, 2 November 2015 (UTC)

Name should be changed to Bond Strength or bond enthalpy

While technically bond energy does describe the general principle, this is not what it is called in chemistry. Bond energy is a term one hears typically at a very introductory chemistry course. This is because if one starts to explain the technicalities, confusion arises.

In Chemistry there are more than a dozen type of bond "energies". This is because in Chemistry there is no one methodology of finding the energy contained in a bond. Every method causes answers that are only a couple of percent off but notnetheless off. Due to this, the quoted literature uses a mean bond enthalpy As a literature standard and it is common place for one to have kJ values slightly different to someone else's.

Then there is the matter of states. In Chemistry one must always define the states under which a reaction is occurring. Especially with thermal things because there is a difference between standard states and gaseous states.

I am also suspicious of however wrote this article because he uses E as units. E as far I know denotes the charge on an en electron, an electrode potential in some old books or of course e^x. This is not a real unit and especially not an SI unit. ALL thermodynamic data is quoted in J or kJ and that is what this article needs to use to not be a complete joke.

I also am in favor of merging this article with bond strength as they as essentially the same thing. HOWEVER, I desire to play a role in this merger because looking at the state of things here it appears no one has devoted any real effort into the thermochemistry subsection. Physics is not the only physical science!

This article gives a vague definition for what bond energy is and is not cited, giving me reason to believe who ever wrote it understood very little of chemistry or was a user such as the one here on the talk page who says he's senior. The most common measure of bond enthalpy or bond energy, if you like, is the bond dissociation enthalpy. This is the enthalpy change that occurs when a stated bond undergoes homolytic fission. The definition used in the article almost directly coincides with tarticles definition for bond energy. Simply put bond enthalpies are calculated using the bond dissociation energy for reactants all in gaseous state at 298K and 101.325 kPa. The IUPAC definition for bond energy is "The average value of the gas-phase bond dissociation energies (usually at a temperature of 298 K) for all bonds of the same type within the same chemical species. The mean bond energy for methane, for example, is one-fourth the enthalpy of reaction for: B00701 Tabulated bond energies are generally values of bond energies averaged over a number of selected typical chemical species containing that type of bond. Source: PAC, 1994, 66, 1077 (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1090

am placing a request to change the name to a more accurate one. I see Wikipedia is missing some thermochemistry. I will add the pages I see missing.

Link went cold!

The link http://www.cem.msu.edu/~reusch/OrgPage/bndenrgy.htm went cold. Could Wikipedians check the link please?
Bkpsusmitaa (talk) 01:16, 26 March 2017 (UTC)

@Bkpsusmitaa: I've replaced the link where it appears in Wikipedia articles with a link to this archvie at the Wayback Machine (archived 29 August 2016). The bot that usually does this does not appear to be operating at the moment. If you have any questions, let me know. --AntiCompositeNumber (Leave a message) 01:32, 26 March 2017 (UTC)

Factors affecting ionic bond energy -- needs editing

The section, "Factors affecting ionic bond energy," needs editing. It's very poorly written and definitely needs changes. I'm not too well versed on chemistry otherwise I would edit it myself. 49.197.45.88 (talk) 14:44, 9 January 2022 (UTC)

No mention of energy units anywhere.

Not one example of an actual bond energy in the entire article? Smashing. 2600:8800:1180:25:8948:2FBB:89F5:6770 (talk) 17:09, 24 November 2023 (UTC)

Wiki Education assignment: CHEM 300

This article was the subject of a Wiki Education Foundation-supported course assignment, between 8 January 2024 and 26 April 2024. Further details are available on the course page. Student editor(s): Diyadang (article contribs). Peer reviewers: Ts2023tv.

— Assignment last updated by RS UBC800 (talk) 19:34, 2 April 2024 (UTC)

Adding bond energies and refreshing references

I'll take to adding a table of common bond energies to the article in its own new section. I’ll also verify and clean-up some of the references, namely the Clark J. (2013) reference that appears to link to a suspicious-looking website instead of a more scholarly source. Some of the older, pre-2000s references could benefit from being replaced with newer versions as well. The “Factors affecting ionic bond energy” section is also strikingly short, so I'll find some more information to extend it. It may also benefit from being turned into a more general “Factors affecting bond energy” section with subsections related to ionic, covalent, and coordinate covalent bond energies. --Diyadang (talk) 20:24, 11 March 2024 (UTC)