Redox Reactions And Electrochemistry Ques 620

Question: A cell reaction would be spontaneous if the cell potential and $ {\Delta_{r}}G $ are respectively:

Options:

A) positive and negative

B) negative, negative

C) zero, zero

D) positive, zero

Show Answer

Answer:

Correct Answer: A

Solution:

[a] For spontaneous $ {\Delta_{r}}G{}^\circ =-nFE{}^\circ <0 $
$ \therefore E{}^\circ >0 $



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