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Fuel Cell
Quiz 3
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Q.1
Which layer does the conversion of chemical energy of reactants to electrical energy, heat and water occur?
Catalyst layer
Electrolyte layer
Gas Diffusion layer
Q.2
Which layer enables the fuel cell to conduct its electrons by attracting the hydrogen protons that are sent to the cathode?
Electrolyte
Catalyst
Gas Diffusion
Bipolar plate
Q.3
Which one of the following state is true for both fuel cells and rechargeable cells?
All reactants are stored within the cell.
Reaction products are continuously removed from the cell.
Electrons pass from the reductant to the anode as electricity is produced.
Electrical energy is converted to chemical energy as the cell is recharged.
Q.4
The energy released in a chemical reaction is directly converted to electrical energy in al
solar cell
electrolytic cell
fossil-fuel power station
hydrogen/oxygen fuel cell
Q.5
The half-equation for the reaction occurring at the (+) electrode in a hydrogen-oxygen fuel which has an alkaline electrolyte would be
H2(g) + 2OH-(aq)→ 2H2O(l) + 2e-
H2(g) → 2H+(g) + 2e-
O2(g) + 4H+(aq) + 4e- → 2H2O(l)
O2(g) + 2H2O(l) + 4e- → 4OH- (aq)
Q.6
O2 + 4H+ + 4e- = 2H2O
cathode reac
anode reac
net reac
none
Q.7
Which fuel cell can be operated at high temperatures up todegree Celsius.
solid oxide
molten carbonate
alkaline
phosphoric acid
Q.8
Yttria stabilized zirconia used as an electrolyte in
alkaline fuel cell
molten carbonate fuel cell
phosphoric acid fuel cell
solid oxide fuel cell
Q.9
What is the electrolyte in methanol fuel cell?
sodium hydroxide
aqueous phosphoric acid solution
water
air
Q.10
In Hydrazine fuel cell, which electrolyte is generally use
potassium hydroxide
hydrogen peroxide
oxygen
hydrazine
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