Chemistry - Electrochemistry Question with Solution | TestHub

ChemistryElectrochemistryGalvanic cells/Nernst Equation/Concentration CellsEasy2 minPYQ_2020
ChemistryEasysingle choice

The standard reduction potentialE°for the half reactions are as:

Zn 2+  + 2 e −  →Zn,       E ° =−0.76 V

Cu 2+  + 2 e −  →Cu,       E °  = 0.34 V

The standard cell voltage for the cell reaction is?

Zn + Cu2+ → Zn2++ Cu

Options:

Answer:
D
Solution:

E cell o = E Cathode o - E Anode o

E cell o = E Cu +2 /Cu o - E Zn +2 /Zn o  

= 0.34−(−0.76)     ��    = 1.10 V

Stream:NTA_ABHYAS_NEETSubject:ChemistryTopic:ElectrochemistrySubtopic:Galvanic cells/Nernst Equation/Concentration Cells
⏱ 2mℹ️ Source: PYQ_2020

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