ElectrochemistryHard
Question
During the electrolysis of 0.1 M CuSO4 solution using copper electrodes, a depletion of [Cu++] occurs near the cathode with a corresponding excess near the anode, owing to inefficient stirring of the solution. If the local concentrations of [Cu++] near the anode & cathode are respectively 0.12 M & 0.08 M, calculate the back e.m.f. developed. Temperature = 298 K .
Options
A.22 mV
B.5.2 mV
C.29 mV
D.59 mV
Solution
Ecell = Eocell - 
log10 
Eocell = 0
Ecell = -
log10 
= + 5.2 mV.
log10 Eocell = 0
Ecell = -
log10 = + 5.2 mV.Create a free account to view solution
View Solution FreeMore Electrochemistry Questions
The efficiency of a fuel cell is 80% and the standard heat of reaction is -300kJ. The reaction involves two electrons in...When an electric current is passed through an aqueous solution of the following, the concentrations of cation as well as...Identification of anode and cathode in an electrochemical cell is made by the use of...Red hot carbon will remove oxygen from the oxide AO and BO but not from MO, while B will remove oxygen from AO. The acti...Molar conductivities at infinite dilution of NaCl, HCl and CH3COONa are 126.4, 425.9 and 91.0 S cm2 mol-1 respectively. ...