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Fuel Cell
Quiz 1
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Q.1
Which market needs fuel cells to produce electricity to power residences?
Stationary Sector
Transportation Sector
Portable Sector
Aerospace Sector
Q.2
In a hydrogen fuel cell used to power a car, where does the oxygen come from?
The air
A catalyst
The fuel
Q.3
In a fuel cell based on the oxidation of methane, the equation for the anode half-reaction is:CH4(g) + 2H2O(l) → CO2(g) + 8H+(aq) + 8e-The corresponding equation for the half-reaction at the cathode is
2H2O(l) + 4e- → 4H+(aq) + O2(g)
4H+(aq) + O2(g) → 2H2O(l)
2H2O(l) → 4H+(aq) + O2 (g) + 4e-
4H+(aq) + O2(g) + 4e- → 2H2O(l)
Q.4
A fuel cell currently under development for powering small electronic devices is based on the reaction of methanol and oxygen using an acidic electrolyte. The reductant in the cell reaction and the half-reaction at the anode are
Methanol; O2(g) + 4H+(aq) + 4e- → 2H2O(l)
Oxygen; O2(g) + 4H+(aq) + 4e- → 2H2O(l)
Methanol; CH3OH(g) + H2O(l) → CO2(g) + 6H+(aq) + 6e-
Oxygen; CH3OH(g) + H2O(l) → CO2(g) + 6H+(aq) + 6e-
Q.5
Methane gas is used as a fuel in an acidic fuel cell. The half-equation occurring at the anode will be
O2(g) + 4H+(aq) + 4e- →2H2O(g)
CH4(g) + 2H2O(g) → CO2(g) + 8H+ (aq) + 8e-
CH4(g) + 4H+(g)→ CO2(g) + 4H2O(l)
CO2(g) + 8H+(aq) + 8e- → CH4(g) + 2H2O(g)
Q.6
What is a disadvantage of using solar photovoltaic cells to provide electricity in a spacecraft?
Photovoltaic cells have lots of moving parts
Photovoltaic cells release toxic byproducts
Photovoltaic cells only work when the spacecraft is in direct sunlight
Q.7
Catalytic converters do what?
Convert elements into gasses
Convert atoms into ions
Split hydrogen atoms into hydrogen ions and electrons
?
Q.8
How much money did Scotland use to make a fuel cell refueling station?
100,000
3.3 Million Dollars
3.3 Million Pounds
61 Dollars
Q.9
What is the main fuel cell company called in Scotland?
The Hydrogen Fuel Company
Fuel association
The Scottish Hydrogen & Fuel Cell Association
The Scottish Fuel Cell Association
Q.10
What is one problem with fuel cells
They are innefficient
They produce harmful chemicles
It is difficult to supply them with fuel
They can't help make gasoline
Q.11
How much money per kilowatt did it cost for fuel cells in the 1900's
100,000 dollars
61 dollars
1,000 dollars
100 dollars
Q.12
Where did we say fuel cells were are used?
Switzerland
Scotland
Norway
USA
Q.13
Are fuel cells completely clean and produce no emissions.
Yes
No
Maybe but you can donate to hydrogen fuel research.
Q.14
What is the most effective fuel for a fuel cell.
Natural gasses.
Solar hydrogen.
Pure hydrogen.
Q.15
Does hydrogen produce more co2 than electric vehicles
True
False
Q.16
Do hydrogen fuels use gasoline
True
False
Q.17
Why do hydrogen fuel cells produce water as a tail pipe emission
It takes the left over water from your cup.
The hydrogen used to power the car combines with a oxygen to make water
The car is thirsty
Q.18
Why are fuel cell vehicles better than conventional.
It has no tail pipe emissions.
It uses hydrogen not fossil fuels for the fuel.
All of the above.
can go twice as far as a conventional vehicle on 1 gallon.
Q.19
Which region is due to the resistance of the transport of charged species in the PEM, catalyst and gas diffusion layers, and bipolar plates?
Activation overpotential
Ohmic overpotential
Concentration overpotential
Electrochemical overpotential
Q.20
Which layer allows gases to pass through it and is conductive enough to allow electrons to travel through it?
Electrolyte
Gas Diffusion
Catalyst
Bipolar plate
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