Moderators: Chem_Mod, Chem_Admin

Posts: 92
Joined: Fri Sep 28, 2018 12:24 am


Postby Meachelle_Lum_1I » Thu Feb 28, 2019 12:16 am

E is not a state function, but how come we can add to get the E of the redox reactions?

Posts: 18400
Joined: Thu Aug 04, 2011 1:53 pm
Has upvoted: 435 times

Re: E

Postby Chem_Mod » Thu Feb 28, 2019 6:26 am

You need to covert E to delta G and then add because delta G is a state function

Athena L 1B
Posts: 59
Joined: Fri Sep 28, 2018 12:18 am

Re: E

Postby Athena L 1B » Thu Feb 28, 2019 4:35 pm

I think it is different because it's specifically the E of the cathode and anode

Harshita Talkad 4L
Posts: 60
Joined: Fri Sep 28, 2018 12:16 am

Re: E

Postby Harshita Talkad 4L » Sat Mar 02, 2019 2:09 am

I think it's ok to add them in redox reactions because the half reactions are still parts of the same overall redox reaction, as opposed to adding together the E values of two completely separate reactions.

Amy Dinh 1A
Posts: 62
Joined: Fri Sep 28, 2018 12:23 am

Re: E

Postby Amy Dinh 1A » Sat Mar 02, 2019 3:06 pm

E is not a state function but through Gibb's free energy, which is a state function, can be broken down into multiple steps.

Return to “Work, Gibbs Free Energy, Cell (Redox) Potentials”

Who is online

Users browsing this forum: No registered users and 2 guests