Consider the following statements pertaining to fuel cells: 1
CHEMISTRY · Single correct · A Level · Chemistry · Electrode potentials · Electrode potentials
Problem
Consider the following statements pertaining to fuel cells:
1. Hydrogen–Oxygen fuel cell makes use of conc. KOH solution as electrolyte and porous graphite impregnated with platinum as electrodes.
2. The efficiency of the fuel cell is less than unity due to polarisation at electrodes and the resistance offered by the electrode and the electrolyte.
3. The electrical work, assuming the cell to be working reversibly may be represented as −ΔG=Welec=−ΔH+TΔS.
Which of the above statements are correct?
(a) 1 and 2
(b) 1 and 3
(c) 2 and 3
(d) 1, 2 and 3