Nernst Equation and Le Châtelier's Principle
A student observes that increasing the concentration of Zn²⁺ in a Zn/Cu galvanic cell decreases the cell potential. The student concludes that this effect is explained by Le Châtelier’s principle. Which of the following identifies a weakness in the student’s conclusion?
A
Adding Zn2+ should increase the cell potential
B
The potential change is from the Nernst equation, not equilibrium shifts
C
Le Châtelier’s principle only applies to temperature changes
D
The reaction is irreversible so no principles apply
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