Which Is NOT True of Overpotential

question 20

Multiple Choice

Which is NOT true of overpotential?

• A)Overpotential is the voltage required to overcome the activation energy for a reaction at an electrode.
• B)The rate of the reaction will increase as the applied overpotential increases.
• C)Activation energy,hence overpotential,is electrode-surface independent.
• D)Applying an increasing overpotential will sustain a higher current density.
• E)Current density is current per unit area of electrode surface,A/m².

---

Definitions:

Analogue Methodology

A research method that uses analogues or stand-ins for phenomena that cannot be directly studied.

Experimental Procedures

A series of steps and methods designed in an experiment to test hypotheses by manipulating and controlling variables.

Experimental Situation

A controlled environment created to test hypotheses and examine the effects of manipulations on variables.

External Validity

The extent to which the results of a study can be generalized to or across populations, settings, times, and other external conditions.