JIPMER 2009
- Exam
- JIPMER
- Year
- 2009
- Subject
- Chemistry
- Chapter
- Electrochemistry
JIPMER 2009 · Chemistry · Electrochemistry
What is the electrode potential (in V ) of the following electrode...
What is the electrode potential (in V ) of the following electrode at ?
(Standard reaction potential of is )
Options
- A
- B
- C
- D
Correct answer
A.
Step-by-step solution
\begin{aligned} E_{\text{cell }^{\circ} & =E_{\text{cell }^{\circ}-\frac{2.303 R T}{n F} \log \left[\frac{[\mathrm{Ni}]}{\left[\mathrm{Ni}^{2+}\right]}\right] \\ & =-0.25-\frac{0.06}{2} \log \left(\frac{1}{0.1}\right) \quad(\because n=2) \\ & =-0.25-0.03 \times 1 \\ E_{\text{cell }} & =-0.28 \mathrm{ V}\end{aligned}