Is E a path function or state function?


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Yuchien Ma 2L
Posts: 46
Joined: Wed Sep 21, 2016 2:58 pm

Is E a path function or state function?

Postby Yuchien Ma 2L » Sat Feb 11, 2017 10:35 pm

Is E a path function or state function?

Tiffany_Luu_1F
Posts: 10
Joined: Wed Sep 21, 2016 2:58 pm

Re: Is E a path function or state function?

Postby Tiffany_Luu_1F » Sun Feb 12, 2017 1:24 am

I think the internal energy U is a state function so it does not depend on the path but I think E is a path function.

stephanieyang_3F
Posts: 62
Joined: Wed Sep 21, 2016 2:55 pm

Re: Is E a path function or state function?

Postby stephanieyang_3F » Sun Feb 12, 2017 2:25 am

E cell isn't a state function. This can be explained by the solution of 14.27 in the homework. When you try to add the half reactions, you can't simply add the E cell, but you can find out the total E cell by adding their Gibbs free energies because the change in Gibbs free energy is a state function. So yes E cell is a path function.


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