The concentration of potassium ions inside a bilological cell is at least twenty times higher than the outisde. The resulting potential difference across the cell is important in several process such as transmission of nerve impuses and maintaning the ion balance. A simple model for such a concentration cell involving a metal M is `M(s)|M^(+)(aq,0.05" molar")||M^(+)(aq,1" molar")|M(s)` For the above electrolytic cell, the magnitude of the cell potential `|E_(cell)|=70mV`. Q. For the above cellA. `E_(cell)lt0,DeltaGgt0`B. `E_(cell)gt0,DeltaGlt0`C. `E_(cell)lt0,DeltaG^(@)gt0`D. `E_(cell)gt0,DeltaG^(@)lt0`

The concentration of potassium ions inside a bilological cell is at le

1.	The concentration of potassium ions inside a bilological cell is at least twenty times higher than the outisde. The resulting potential difference across the cell is important in several process such as transmission of nerve impuses and maintaning the ion balance. A simple model for such a concentration cell involving a metal M is `M(s)\|M^(+)(aq,0.05" molar")\|\|M^(+)(aq,1" molar")\|M(s)` For the above electrolytic cell, the magnitude of the cell potential `\|E_(cell)\|=70mV`. Q. For the above cellA. `E_(cell)lt0,DeltaGgt0`B. `E_(cell)gt0,DeltaGlt0`C. `E_(cell)lt0,DeltaG^(@)gt0`D. `E_(cell)gt0,DeltaG^(@)lt0`
Answer» Correct Answer - B For the given concentration cell, `E_(cell)=(2.303RT)/(nF)"log"(C_(2))/(C_(1))` `=(2.303RT)/(F)"log"(1)/(0.05)=+ve,` i.e., `E_(cell)gt0`. For the reaction to be spontaneous, `DeltaG lt 0`.

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