bond enthalpies

Moderators: Chem_Mod, Chem_Admin

Sarah Blake-2I
Posts: 153
Joined: Fri Aug 30, 2019 12:16 am

bond enthalpies

Postby Sarah Blake-2I » Sun Jan 26, 2020 10:30 am

When using method #2, how do you figure out which bonds are broken and formed just by looking at the lewis structures?

Amy Kumar 1I
Posts: 114
Joined: Thu Jul 11, 2019 12:15 am

Re: bond enthalpies

Postby Amy Kumar 1I » Sun Jan 26, 2020 11:47 am

In the example that Dr. Lavelle used during lecture, drawing the Lewis structures reveals that the double bond between the carbons in ch2 is broken since the product (ch3ch2br) only has a single bond between the carbons. You would have to compare the Lewis structures of the reactants and the products separately to see which are broken and which are formed.

Sally Qiu 2E
Posts: 105
Joined: Fri Aug 30, 2019 12:18 am

Re: bond enthalpies

Postby Sally Qiu 2E » Sun Jan 26, 2020 12:01 pm

you would have to draw out the lewis structures and see which bonds were broken and formed in the products.


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 2 guests