1.

(a) Find the value of deltaG^circ at 25^circ for the following electrochemical cell. Cu|Cu^2+ 9(1M) Ag ( 1M) Ag Write the equation of anodic and cathodic reaction occur during rusting of iron. (i) At Anode :- 2Fe to 2Fe^2+ +4e^- (ii) At Cathod :- O_2+4H ^+ 4e ^- to 2H_2O.

Answer»

SOLUTION :` E_(CELL)^E_(cell)^CIRC` = `E^circ R-E_(l)^circ = 0.34= 0.46V`
`Delta G^circ` =`nF E^circ =-2xx 96,487 xx 1.14 = -2 xx 96,487 xx 0.46 = -88768.04j`.
(i) At Anode :`- 2Fe to 2Fe^2+ +4E`
(ii) At Cathod :- `O_2 + 4H^+ 4e to 2H_2O`.


Discussion

No Comment Found

Related InterviewSolutions