If the ΔG of a cell reaction, AgCl+e−→Ag+Cl− is −21.20 kJ, the standard emf of cell is
0.220V
0.239V
−0.110V
−0.320V
A
−0.320V
B
0.239V
C
0.220V
D
−0.110V
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Solution
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ΔGo=−nFEcell −21200=−1×96500×Ecell Ecell=0.220V
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