question_answer

For an electrochemical cell

\[Sn\left( s \right)\left| S{{n}^{2+}}\left( aq,1M \right) \right|\left| P{{b}^{2+}}\left( aq,1M \right) \right|Pb\left( s \right)\]the ratio \[\frac{\left[ S{{n}^{2+}} \right]}{\left[ P{{b}^{2+}} \right]}\] when this cell attains equilibrium is _______ .

Given: \[E_{S{{n}^{2+}}|Sn}^{0}=-0.14V,\]

\[E_{P{{b}^{2+}}|Pb}^{0}=-0.\left. 13V,\frac{2.303RT}{F}=0.06 \right)\]

[JEE MAIN Held on 08-01-2020 Evening]

Answer:

2.15