A chemist constructs an electrochemical cell with an iron anode and a copper cathode. She measures the cell voltage. Next, she replaces the copper electrode with a larger copper electrode. What does she find when she measures the cell voltage of the cell with the larger copper electrode?
A.
There is no change in the voltage.
B.
The voltage becomes zero.
C.
The voltage increases.
D.
The voltage decreases but stays positive.
Exam No：AP Chemistry Problem Set 6 Year：2024 Question No：APChemistry2024AP0181
Answer:
A
Knowledge points:
9.9 Cell Potential and Free Energy
Solution:
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