I- Anode potential increases positively when current is applied in the anodic direction to an electrode in equilibrium. Il- If current is applied in the cathodic direction, the electrode potential shifts in the negative direction. III-The change in electrode potential as current flows is called overvoltage. IV- The regions in which the logarithm of the external current applied by overvoltage changes linearly is called the Tafel region. Which of the above is/are wrong? A: Only I B: Only III C: Il and IV D: 1,l and III E: Only II
I- Anode potential increases positively when current is applied in the anodic direction to an electrode in equilibrium. Il- If current is applied in the cathodic direction, the electrode potential shifts in the negative direction. III-The change in electrode potential as current flows is called overvoltage. IV- The regions in which the logarithm of the external current applied by overvoltage changes linearly is called the Tafel region. Which of the above is/are wrong? A: Only I B: Only III C: Il and IV D: 1,l and III E: Only II
Chapter18: Introduction To Electrochemistry
Section: Chapter Questions
Problem 18.3QAP
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Transcribed Image Text:I- Anode potential increases positively when current is applied in the anodic direction to an electrode in equilibrium.
Il- If current is applied in the cathodic direction, the electrode potential shifts in the negative direction.
II-The change in electrode potential as current flows is called overvoltage.
IV- The regions in which the logarithm of the external current applied by overvoltage changes linearly is called the
Tafel region.
Which of the above is/are wrong?
A:
Only I
B:
Only III
C:
Il and IV
D:
1,Il and III
E:
Only III
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