Oxygen Evolution pH at Anode (Jee Mains) | ExamDuo
Cell EMF and Thermodynamics
Medium
Oxygen Evolution pH at Anode
Consider the following electrochemical cell :
Pt | O2(g) (1bar) | HCl (aq) || M2+(aq, 1.0 M) | M(s)
The pH above which, oxygen gas would start to evolve at anode is _______ (nearest integer).
![\left[ {\begin{array}{*{20}{c}} {Given:}&{\left. {\begin{array}{*{20}{c}} {E_{{M^{2 + }}/M}^0 = 0.994V}\\[0.9em] {E_{{O_2}/{H_2}O}^0 = 1.23V} \end{array}} \right\}\;{\text {standard reduction potential}}}\\[0.9em] {}&{and\;\frac{{RT}}{F}(2.303) = 0.059\;V\;at\;the\;given\;condition} \end{array}} \right]](https://cdn.examduo.ai/jee/fd95252c12492d1a.webp)