IF CHANGE IN GIBBS ENERGY FOR A REACTION ISO (A+) + (B-) =(A2+) + (B2-) IS x, THEN FIND IT FOR RXN- (0.5A+) + (0.5B-) = (0.5A2)+ + (0.5B2-)

Asked by mishita goel | 22nd Sep, 2010, 06:14: PM

Expert Answer:

For ELECTROCHEMICAL cell:
 
(A+) + (B-) =(A2+) + (B2-)
 
ΔG=nFEo
 
and in first reaction n=1
 
and hence, x=1*FEo
 
and for (0.5A+) + (0.5B-) = (0.5A2)+ + (0.5B2-)
 
here
 
n=.5
 
hence,ΔG=.5FEo
 
which can be written as,ΔG=.5FEo =x/2

Answered by  | 23rd Sep, 2010, 01:33: PM

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