Q 1911645529.     Calculate the standard cell potentials of galvanic
cell in which the following reactions take place
(i) `2Cr(s) + 3Cd^(2+) (aq) -> 2Cr^(3+) (aq) + 3Cd (s)`
(ii) `Fe^(2+) (aq) + Ag^+ (aq) -> Fe(3+) (aq) + Ag(s)`

Given `E_(Cr^(3+), Cr)^o = -0.74 V`,

`E_(cd^(2+), Cd)^o = -0.40 V`,

`E_(Ag^+, Ag)^o = 0.80 V, E_(Fe^(3+), Fe^(2+))^o = 0.77 V`.

Calculate the `triangle_r G^⊖` and equilibrium
constant of the reactions.

NCERT Chapter Solution 3/3.4/itq

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