This is an example of a real Tafel plot The negative deviations from linearity at very large overpotentials come from limitations imposed by mass transfer The region of very low overpotentials shows sharp falloffs for the reasons outlined just above k0 is the standard heterogenous rate constant in cm s j0 is the exchange current density in A cm2 rigure 5 4 5 latel plots tor the reduction of Mn(IV) to Mn(111) at Pt in 5MH2SU4 at 298K The dashed line corresponds to 0 24 From K J Vetter and G Manecke, Z Physik Chem (Leipzig), 195, 337 (1950), with permission 3 12 From results in Figure 3 4 5 for 102MMn (III) and 102MMn (IV), estimate j0 and k0 What is the predicted j0 for a solution 1M in both Mn(III) and Mn(IV)

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Question: This is an example of a real Tafel plot. The negative deviations from linearity at very large overpotentials come from limitations imposed by mass transfer.

This is an example of a real Tafel plot. The negative deviations from linearity at very large overpotentials come from limitations imposed by mass transfer. The region of very low overpotentials shows sharp falloffs for the reasons outlined just above.

k0 is the standard heterogenous rate constant [in cm/s]

j0 is the exchange current density [in A/cm2]

This is an example of a real Tafel plot. The negative deviations

rigure 5.4.5 latel plots tor the reduction of Mn(IV) to Mn(111) at Pt in /.5MH2SU4 at 298K. The dashed line corresponds to =0.24. [From K. J. Vetter and G. Manecke, Z. Physik. Chem. (Leipzig), 195, 337 (1950), with permission.] 3.12 From results in Figure 3.4.5 for 102MMn (III) and 102MMn (IV), estimate j0 and k0. What is the predicted j0 for a solution 1M in both Mn(III) and Mn(IV)

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