hard · MCAT chem-phys
A galvanic cell is built from the half-reactions Cu^2+ + 2e^- rightarrow Cu (E^circ = +0.34 V) and Ag^+ + e^- rightarrow Ag (E^circ = +0.80 V).
What is E^circ_cell, and how does diluting the Cu^2+ solution at the anode affect the actual cell potential during operation?
- E^circ_cell = 0.46 V; diluting Cu^2+ decreases E_cell because it raises reaction quotient Q.
- E^circ_cell = 0.46 V; diluting Cu^2+ increases E_cell because it raises reaction quotient Q.
- E^circ_cell = 1.14 V; diluting Cu^2+ decreases E_cell because it lowers reaction quotient Q.
- E^circ_cell = 0.46 V; diluting Cu^2+ increases E_cell because it lowers reaction quotient Q.
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