In a concentration cell, the potential difference arises due to:
Correct Answer: Different concentrations of the same species
- Step 1: Understand what a concentration cell is. It is a type of electrochemical cell.
- Step 2: Know that a concentration cell has two electrodes made of the same material.
- Step 3: Recognize that the two electrodes are placed in solutions with different concentrations of the same ion or species.
- Step 4: Realize that the difference in concentration creates a difference in chemical potential.
- Step 5: Understand that this difference in chemical potential leads to a potential difference (voltage) between the two electrodes.
- Step 6: Conclude that the potential difference arises because the ions move from the area of higher concentration to the area of lower concentration.
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