Standard Reaction Enthalpies

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Niharika 1H
Posts: 50
Joined: Thu Jul 25, 2019 12:16 am

Standard Reaction Enthalpies

Postby Niharika 1H » Sun Jan 26, 2020 10:32 pm

How do we calculate the standard reaction enthalpy if bond enthalpies aren't given?

Ashley Wang 4G
Posts: 103
Joined: Wed Sep 11, 2019 12:16 am

Re: Standard Reaction Enthalpies

Postby Ashley Wang 4G » Sun Jan 26, 2020 10:56 pm

You can use the difference in the sum of standard enthalpies of formation of the products and the reactants (method 3 in lecture).

Ryan Chang 1C
Posts: 105
Joined: Sat Aug 24, 2019 12:17 am

Re: Standard Reaction Enthalpies

Postby Ryan Chang 1C » Sun Jan 26, 2020 10:58 pm

Prof. Lavelle provided us with 3 different methods. Using bond enthalpies was the second method he gave us. If the bond enthalpies aren't provided, the third method can be used, which is subtracting standard enthalpies of formation for the reactants from the standard enthalpies of formation for the products within a reaction in order to find the standard reaction enthalpy.


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