Gibbs Free Energy of Formation

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Cindy Chen_2I
Posts: 43
Joined: Wed Nov 18, 2015 3:00 am

Gibbs Free Energy of Formation

Postby Cindy Chen_2I » Sun Mar 06, 2016 5:02 pm

In home work problem 14.33, they told us that the standard gibbs free energy of formation of Tl3+ is 215 kJ/mol. Why is the formation reaction Tl3+ + 3e- --> Tl and not the other way around? How would you know this?

Victoria Ford 4D
Posts: 65
Joined: Fri Sep 25, 2015 3:00 am

Re: Gibbs Free Energy of Formation

Postby Victoria Ford 4D » Mon Mar 07, 2016 8:51 pm

Standard potentials are calculated using the reduction potentials (being standard) which is why they used the gain of electrons equation.

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