The Edison storage cell is described by Fe(s) FeO(s) KOH(aq, a KOH ) Ni 2 O 3 (s) NiO(s) Ni(s) and the half cell reactions are as follows Ni 2 O 3 (s) H 2 O(l) 2e 2NiO(s) 2OH (aq) E o 0 40 V FeO(s) H 2 O(l) 2e Fe(s) 2OH (aq) E o 0 87 V a What is the overall cell reaction b How does the cell potenti...

a Fes Ni 2 O 3 sFeOs 2NiOs b It does not depend on the KOH concentration because the hydrox ...

The Edison storage cell is described by Fe(s) FeO(s) KOH(aq, a KOH ) Ni 2 O 3

Question:

The Edison storage cell is described by

Fe(s) FeO(s) KOH(aq, a_KOH) Ni₂O₃(s) NiO(s) Ni(s)

and the half-cell reactions are as follows:

Ni₂O₃(s) + H₂O(l) + 2e^– → 2NiO(s) + 2OH^– (aq)......................E^o = 0.40 V

FeO(s) + H₂O(l) + 2e^– → Fe(s) + 2OH^– (aq)..............................E^o = −0.87 V

a. What is the overall cell reaction?

b. How does the cell potential depend on the activity of the KOH?

c. How much electrical work can be obtained per kilogram of the active materials in the cell?

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Physical Chemistry

ISBN: 978-0321812001

3rd edition

Authors: Thomas Engel, Philip Reid

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Question Posted: Apr 30, 2018 03:02 AM

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The Edison storage cell is described by Fe(s) FeO(s) KOH(aq, a KOH ) Ni 2 O 3

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Physical Chemistry

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