Electrochemistry Ques 27
A hydrogen gas electrode is made by dipping platinum wire in a solution of $HCl$ of $pH=0$ and by passing hydrogen gas around the platinum wire at one atm pressure. The oxidation potential of electrode would be ?
[NEET 2013]
(a) $0.59 V$
(b) $0.118 V$
(c) $1.18 V$
(d) $0.059 V$
Show Answer
Solution:
- (a) $H_2 \longrightarrow 2 H^{+}+2 e^{-}$
$1 atm \quad 10^{-10} \text{ m}$
$E _{H_2 / H^{+}}=0-\frac{0.059}{2} \log \frac{(10^{-10})^{2}}{1}$
$E _{H_2 / H^{+}}=0.00 V$
BETA
