The electromotive force, EMF of the galvanic cell Pb(s)| PbCl2(s) | HCI(aq) | AgCl(s) | Ag(s) where all of the components are present as pure solids in contact with an HCl electrolyte, is 0.490 volts at 25°C and, at that temperature, the temperature coefficient of the EMF is -1.84x104 volts/degree. (i) State the cell reaction. (ii) Calculate the Gibbs free energy change and the entropy change for the cell reaction at 298K.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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The electromotive force, EMF of the galvanic cell
Pb(s) | PbCl2(s) | HCI(aq) | AgCl(s) | Ag(s)
where all of the components are present as pure solids in contact with an HCl
electrolyte, is 0.490 volts at 25°C and, at that temperature, the temperature coefficient
of the EMF is -1.84x10+ volts/degree.
(i) State the cell reaction.
(ii) Calculate the Gibbs free energy change and the entropy change for the cell reaction
at 298K.
Transcribed Image Text:The electromotive force, EMF of the galvanic cell Pb(s) | PbCl2(s) | HCI(aq) | AgCl(s) | Ag(s) where all of the components are present as pure solids in contact with an HCl electrolyte, is 0.490 volts at 25°C and, at that temperature, the temperature coefficient of the EMF is -1.84x10+ volts/degree. (i) State the cell reaction. (ii) Calculate the Gibbs free energy change and the entropy change for the cell reaction at 298K.
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