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ChemistryElectrochemistryGalvanic cells/Nernst Equation/Concentration CellsEasy2 minPYQ_2017
ChemistryEasysingle choice

For the cell Zn sZnSO4 aqCuSO4 aqCu s, when the concentration of Zn2+ is 10 times the concentration of Cu2+, the expression for ΔG in J mol-1 is

[F=Faraday's constant, R=universal gas constant, T=temperature, Eocell=1.1 V]

Options:

Answer:
B
Solution:

ΔG=ΔG°+2.303×RT×log Q,

ΔG=-nFE°+2.303×RT×log Q.

Given, E°=1.1 V and n=2,

ΔG=-2×1.1×F+2.303×RT×logZn+2Cu+2,

ΔG=-2.2F+2.303×RT.

Stream:JEE_ADVSubject:ChemistryTopic:ElectrochemistrySubtopic:Galvanic cells/Nernst Equation/Concentration Cells
2mℹ️ Source: PYQ_2017

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