ElectrochemistryHard
Question
The EMF of a concentration cell consisting of two zinc electrodes, one dipping into 
sol. of zinc sulphate & the other into 
sol. of the same salt at 25oC is
sol. of zinc sulphate & the other into sol. of the same salt at 25oC is Options
A.0.0125 V
B.0.0250 V
C.0.0178 V
D.0.0356 V
Solution
E = 0 - 
log 
× 2 log 2 = - 0.0591 × 0.301 = - 0.0178 Volt.
If connected in reverse direction, E = 0.0178 volt.
log × 2 log 2 = - 0.0591 × 0.301 = - 0.0178 Volt.If connected in reverse direction, E = 0.0178 volt.
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