Which Statement Concerning Overvoltage Is False

question 131

Multiple Choice

Which statement concerning overvoltage is false?

• A)Overvoltage is the additional voltage above the calculated voltage required to bring about electrolysis.
• B)Overvoltage is often due to a high activation energy for the reaction at one electrode.
• C)Overvoltage is small for half-reactions involving the formation of O₂(g)or H₂(g).
• D)Overvoltage must be experimentally determined.

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