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GUJCET · Chemistry · Electrochemistry

What will be the oxidation potential for the following hydrogen half cell at 1 bar pressure and \(25^{\circ} C\) temperature ?
\(Pt \left|\underset{ lbar }{ H _{2(g)}}\right| HCl _{( aq )} pH =3\)

  1. A 0.177 V
  2. B 0.188 V
  3. C 0.059 V
  4. D 0.000 V
Verified Solution

Answer & Solution

Correct Answer

(A) 0.177 V

Step-by-step Solution

Detailed explanation

\(E_{ox} = E^\circ_{ox} - \frac{0.059}{n} \log \frac{[H^+]^2}{P_{H_2}}\) \(E_{ox} = 0 - \frac{0.059}{2} \log \frac{(10^{-3})^2}{1}\)