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.

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.

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter9: Heat Transfer With Phase Change

Section: Chapter Questions

Problem 9.12P

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Concept explainers

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

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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