104. Solving a chemistry problem
Specify the direction of spontaneous reaction:
5MnO2 K2SO4 2H2SO4 ↔ 2KMnO4 3MnSO4 2H2O,
and calculate the equilibrium constant if the redox potentials are equal:
φ0(MnO4-/MnO2)= 1.692V, φ0(MnO2/Mn2)= 1.228V.
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