
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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Chapter 17 Solutions
General Chemistry: Atoms First
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