ElectrochemistryMedium

Question

For the cell: Ni|Ni2+||Cu2+|Cu; E° = 0.77 V. By which of the following activity, Ecell will increase?

Options

A.On decreasing [Ni+2]
B.On decreasing [Cu+2]
C.On increasing mass of Ni electrode
D.On increasing mass of Cu electrode

Solution

$E_{cell} = E_{cell}^{o} - \frac{RT}{2F}.\ln\frac{\left\lbrack Ni^{2 +} \right\rbrack}{\left\lbrack Cu^{2 +} \right\rbrack}$

Create a free account to view solution

View Solution Free
Topic: Electrochemistry·Practice all Electrochemistry questions

More Electrochemistry Questions

The pressure of H2 required to make the potential of H2 - electrode zero in pure water at 298 k is:...Estimate the cell potential of a Daniel cell having 1.0 M – Zn2+ and originally having 1.0 M – Cu2+ after sufficient amm...The following galvanic cell: Zn|Zn(NO3)2 (100 ml, 1 M)||Cu(NO3)2 (100 ml, 1 M)|Cu was operated as an electrolytic cell a...The reaction : 1/2H2(g) + AgCl(s) → H+(aq) + Cl-(aq) + Ag(s)occurs in the galvanic cell -...Using same quantity of current, which among Na, Mg and Al is deposited more (by mass) during electrolysis of their molte...