Consider the half‐cell reduction reactionM n^2++2 e^−→M n,E^o=−1.1 8 V M n^2+→M n^3++e^−,E^o=−1.5 1 V .The E^o for the reaction 3 M n^2+→M n^0+2 M n^3+, and possibility of the forward reaction are re…

Question

Consider the half‐cell reduction reactionM n^2++2 e^−→M n,E^o=−1.1 8 V M n^2+→M n^3++e^−,E^o=−1.5 1 V .The E^o for the reaction 3 M n^2+→M n^0+2 M n^3+, and possibility of the forward reaction are respectively

Accepted Answer

Correct answer: D. (d) M n^2++2 e^−→ Mn; E^o=−1.1 8 V 2 M n^2+→2 M n^3++2 e^−; E^o=−1.5 1 V For the cell, 3 M n^2+→M n+2 M n^3+; E^o=−2.6 9 V Since the E^o value is negative, so the process is non‐spontaneous.

$Consider the half‐cell reduction reaction M n^{2 +} + 2 e^{-} \to M n, E^{o} = - 1.18 V M n^{2 +} \to M n^{3 +} + e^{-}, E^{o} = - 1.51 V . The E^{o} for the reaction 3 M n^{2 +} \to M n^{0} + 2 M n^{3 +}, and possibility of the forward reaction are respectively$

Solution

More Electrochemistry PYQs