Hydrogen Fuel Cells

What is produced by a hydrogen-oxygen fuel cell?

• Water and Carbon Dioxide

• Carbon Dioxide

• Water

Which of these is a disadvantage of cars driven by hydrogen-oxygen fuel cells rather than by petrol engines?

• They have fewer moving parts

• There are fewer suitable filling stations

• They emit little pollution

What is the main reason why hydrogen is more difficult to store than diesel?

• Hydrogen is a gas at room temperature but diesel is a liquid

• Hydrogen can be liquefied by cooling it

• Hydrogen can be stored under pressure

In a hydrogen fuel cell used to power a car, where does the oxygen come from?

• The air

• A catalyst

• The fuel

Fuel cells produce

• Fossil Fuels
• Hydrogen gas
• Electricity
• Gasoline

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The following equation represents what goes on during a hydrogen cell ... 2H ₂ + O ₂ → 2H ₂O

• True

• False

Hydrogen fuel cells are dependent upon

• time of day

• fossil fuels

• neither

• both

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A hydrogen fuel cell is most similar to?

• an engine

• a photovoltaic cell

• a battery

• a source of coal

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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.

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Which of these is a disadvantage of hydrogen fuel cells

• produces pollution
• expensive and flammable
• heavy and weak
• large and unattractive

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