In the electrochemical cell, cd + Sn+4 -> cd+2 + Sn+2 Increase in the concentration of Sn+2:
Correct answer: B. Decreasing the emf of cell
- A. Increases the emf of cell
- B. Decreasing the emf of cell
- C. No change in emf of cell
- D. Unpredictable
Explanation
Increasing the concentration of Sn2+ will lead to a decrease in the cell potential (EMF) of the electrochemical cell. This is because the increased concentration of Sn2+ will affect the reaction quotient in the Nernst equation, resulting in a lower cell potential. The cell potential is essentially a measure of the driving force for the electrochemical reaction, and an increase in the concentration of a product (Sn2+) will decrease this driving force and, consequently, the cell potential.
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