Cell Representation,application Flashcards
SOP OF Zn is +0.76
SRP OF Zn is - 0.76
The species above hydrogen are good oxidising agent and species below hydrogen are good reducing agents
ABC FOR GALVANIC CELL
Ni–AgNO3
Left. Right
Oxidation. Reduction
Anode. Cathode
Anode Ni. ==== Ni+² +2e
Cathode Ag+ + e. ==== Ag. X2
Ni + 2Ag+ ======= Ni+2. + 2Ag
Ni(s)/ Ni+2 (aq) ll Ag+(aq) / Ag
Ecell must be …….for spontaneous rxn
Positive
G= –nfEcell
Intensive and extensive property
An intensive property is one dose not depend on mass of substance ex T,P,D
An extensive property is one depend upon the amount of matter ex length,mass, weight, volume
Ecell= –delta G/nF
Delta G and nF if extensive
Ecell is intensive
Electrochemical potential more =
Oxidising tendency of any metal is more