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Determine the values of equilibrium cons...

Determine the values of equilibrium constant `(K_(c))` and `DeltaG^(@)` for the reaction
`Ni(s)+2Ag^(+)(aq)rarrNi^(2+)(aq)+2Ag(s), E^(@)=1.05 V.` (`"Given " 1F=96500"C mol"^(-1))`

Text Solution

Verified by Experts

`Ni_((s))+ 2Ag_((aq))^(+)rightarrow Ni_((aq))^(2+) + 2Ag_((s))` , `E^(@) = 1.05V` Here, n= 2
Using formula , `logK_(c)= (nE_(cell)^(@)/(0.059)`
or `logK_(c)=(2xx1.05)/(0.059)= 35 . 5932`
`K_(c)= "antilog" 35.5932` or `K_(c)= 3.92 xx10^(35)`
Again , `Delta G^(@)= - nFE_(cell)^(@)`
`DeltaG^(@) = -2xx96500xx1.05 = -202650 J` `Rightarrow Delta G^(@)= - 202.65KJ`
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