Textbook Example 8.13: Bond Enthalpy

Moderators: Chem_Mod, Chem_Admin

Antonio Melgoza 2K
Posts: 33
Joined: Fri Sep 25, 2015 3:00 am

Textbook Example 8.13: Bond Enthalpy

Postby Antonio Melgoza 2K » Thu Jan 21, 2016 7:44 pm

How do you know which bonds form/break? There are 6 C-H bonds in CH3CHCH2, why don't those break? The equation is attached below.
Bond EnthALPY PIC.png

Posts: 18693
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 616 times

Re: Textbook Example 8.13: Bond Enthalpy

Postby Chem_Mod » Fri Jan 22, 2016 10:29 am

Since the final product is given, you can safely predict which bonds will be broken/unchanged. In this case we have an example of an electrophilic addition of bromine to propene. In this electrophilic reaction the C=C double bond is broken, and a bromine attaches to to each carbon, forming the aforementioned product.

Return to “Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)”

Who is online

Users browsing this forum: No registered users and 0 guests