Concept explainers
(a)
Interpretation:
The anode, cathode has to be labelled and the signs of the electrodes has to be indicated.
Concept Introduction:
PEM fuel cell:
(b)
Interpretation:
The direction of electron flow has to be indicated.
Concept Introduction:
PEM fuel cell:
Polymer exchange membrane fuel cell is type of fuel cell that is develop for transport application, stationary fuel-cell applications and portable fuel-cell applications. It generated electricity and operates on the opposite principle of Proton exchange membrane electrolysis.
(c)
Interpretation:
The substances that exists from each cell compartment has to be identified.
Concept Introduction:
PEM fuel cell:
Polymer exchange membrane fuel cell is type of fuel cell that is develop for transport application, stationary fuel-cell applications and portable fuel-cell applications. It generated electricity and operates on the opposite principle of Proton exchange membrane electrolysis.
(d)
Interpretation:
The balanced reactions of anode, cathode and overall cell reaction has to be written and the standard cell potential has to be calculated.
Concept Introduction:
PEM fuel cell:
Polymer exchange membrane fuel cell is type of fuel cell that is develop for transport application, stationary fuel-cell applications and portable fuel-cell applications. It generated electricity and operates on the opposite principle of Proton exchange membrane electrolysis.
Cell potential (EMF):
The maximum potential difference between two electrodes of voltaic cell is known as cell potential.
If standard reduction potentials of electrodes are known, the cell potential (EMF) is given by,
Where,
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Check out a sample textbook solutionChapter 17 Solutions
General Chemistry: Atoms First
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- You have 1.0 M solutions of Al(NO3)3 and AgNO3 along with Al and Ag electrodes to construct a voltaic cell. The salt bridge contains a saturated solution of KCl. Complete the picture associated with this problem by a writing the symbols of the elements and ions in the appropriate areas (both solutions and electrodes). b identifying the anode and cathode. c indicating the direction of electron flow through the external circuit. d indicating the cell potential (assume standard conditions, with no current flowing). e writing the appropriate half-reaction under each of the containers. f indicating the direction of ion flow in the salt bridge. g identifying the species undergoing oxidation and reduction. h writing the balanced overall reaction for the cell.arrow_forwardCalculate the standard cell potential of the following cell at 25C. Sn(s)Sn2+(aq)I2(aq)I(aq)arrow_forwarda Calculate G for the following cell reaction: Tl(s)Tl+(aq)Pb2+(aq)Pb(s) The Gf for Tl+(aq) is 32.4 kJ/mol. b From G, calculate the standard cell potential for the cell reaction and from this, determine the standard potential for Tl2+(aq)+eTl(s).arrow_forward
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