JEE Advanced2010ChemistryElectrochemistryActual
Paragraph: The concentration of potassium ions inside a biological cell is at least twenty times higher than the outside. The resulting potential difference across the cell is important in several processes such as transmission of nerve impulses and maintaining the ion balance. A simple model for such a concentration cell involving a metal M is : M(s) M⁺( q ; 0.05 molar ) | M⁺(a q ; 1 molar ) M(s) For the above elect
Options
- AE_ cell 0
- BE_ cell >0 ; G < 0
- CE_ cell 0
- DE_ cell >0 ; G^ < 0
Correct answer
B. E_ cell >0 ; G < 0
Step-by-step solution
The given cell is electrolytic concentration cell, So E_ cell ^ =0 Anode : gathered M(s) M⁺(a q)+e⁻ Cathode : M⁺(a q)+e⁻ M(s) M⁺(a q) cathode M⁺(a q) anode E_ cell =E_ cell ^ - 0.0591 1 [M⁺ ]_ anodic [M⁺ ]_ cathodic =0- 0.0591 1 0.05 1 E_ cell =70 mV (+ ve ) Hence, G=-n F E_ cell =- ve gathered