Which one of the following will increase the voltage of the cell? Sn(s)+2Ag+(aq)→Sn2+(aq)+2Ag(s)
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a
increase in concentration of Sn2+
b
increase in size of silver rod
c
increase in the concentration of Ag+
d
none of the above
answer is C.
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Detailed Solution
Ecell=Ecello - 2.303RTnFlog[Sn2+][Ag+]2. Increase in the concentration of Ag+ decreases the value of log[Sn2+][Ag+]2.This results in the increased value of Ecell