Which one of the following will increase the voltage of the cell: `(T = 298K)`
`Sn +2Ag^(+)rarr Sn^(2+) +2Ag`

Options

A. increase in the size of silver rod
B. increase in the concentration of `Sn^(+2)` ions
C. increase in the concentration of `Ag^(+)` ions
D. none of the above.

Answer

C

Explanation

`E_(cell)=E_(cell)^(@)-(0.059)/(2)log(([Sn^(2+)])/([Ag^(+)]^(2)))` `Ag^(+)` increase, `E_(cell)` increase.