Given an overall cell potential Eo = +1.56 V for an electrochemical cell reactio

Question

Given an overall cell potential Eo = +1.56 V for an electrochemical cell reaction :
(a) State whether or not this reaction will occur spontaneously, and explain how you know.
(b) Calculate delta G for this cell
(c) what does this answer indicate, regarding the spontaneity of the reaction? Given an overall cell potential Eo = +1.56 V for an electrochemical cell reaction :
(a) State whether or not this reaction will occur spontaneously, and explain how you know.
(b) Calculate delta G for this cell
(c) what does this answer indicate, regarding the spontaneity of the reaction?
(a) State whether or not this reaction will occur spontaneously, and explain how you know.
(b) Calculate delta G for this cell
(c) what does this answer indicate, regarding the spontaneity of the reaction?

Explanation / Answer

a.

Since E°cell is positive, this is expected to coccur in the forward direction, since reduction in cathode and oxidation in anode is favoured (i.e. the correct order of processes)

b.

G = -nF*E°cell

G = -1*96500*1.56 = - 150540 J

c.

this means, that since G <0, this is ALSO spontanous, both values accept our theory!

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