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Question

a) Draw labelled diagram of Standard Hydrogen Electrode ( SHE ).
Write its half cell reaction of Eo value.
b) Calculate rG for the following reaction :
Fe+2(aq)+Ag+(aq)Fe+3(aq)+Ag(s).
(Given : E0Cell=+0.03V,F=96500C).

Solution
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a) The labelled diagram of Standard Hydrogen Electrode ( SHE ) is as shown.
Half cell reaction for SHE
2H+(aq)+2eH2(g)
b)
rG=nFE0Cell=1×96500×0.03V=2895J/mol=2.9kJ/mol
659008_623726_ans_f26e883dab56420da828504eef492344.gif

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Similar Questions
Q1
a) Draw labelled diagram of Standard Hydrogen Electrode ( SHE ).
Write its half cell reaction of Eo value.
b) Calculate rG for the following reaction :
Fe+2(aq)+Ag+(aq)Fe+3(aq)+Ag(s).
(Given : E0Cell=+0.03V,F=96500C).
View Solution
Q2
Calculate the G and equilibrium constant of the reaction
Fe+2(aq)+Ag+(aq)Fe+3(aq)+Ag(s)
EAg+|Ag=0.80 EFe+3|Fe+2=0.77V
View Solution
Q3
For the reaction:
Fe2+(aq)+Ag+(aq)Ag(s)+Fe+3(aq)

Predict which change will decrease the cell voltage?

View Solution
Q4
Calculate the standard cell potentials of galvanic cell in which the following reactions take place:
(i) 2Cr(s)+3Cd2+(aq)2Cr3+(aq)+3Cd
(ii) Fe2+(aq)+Ag+(aq)Fe3+(aq)+Ag(s)
Calculate the ΔrG and equilibrium constant of the reactions
View Solution
Q5

Calculate the standard cell potentials of galvanic cells in which the following reactions take place:

(i) 2Cr(s) + 3Cd2+(aq) → 2Cr3+(aq) + 3Cd

(ii) Fe2+(aq) + Ag+(aq) → Fe3+(aq) + Ag(s)

Calculate the ΔrGθ and equilibrium constant of the reactions.

View Solution