Chemistry Fuel Cell Quiz
Which fuel cells operate at low temperatures?
Alkaline, proton exchange membrane, phosphoric-acid fuel cells
Who developed the first practical fuel cell?
Francis Bacon
What is a fuel cell?
device that converts hydrogen & oxygen into water
Benefits of fuel cells:
efficient & clean
Portable fuel cell power supply advantages:
energy density, convert chemical energy from hydrogen to electricity, pollution free,
Is the reaction of a fuel cell exo- or endo-thermic?
exothermic
2 principle reactions in burning of hydrocarbon fuel
formation of water & carbon dioxide
What happens as hydrogen content in fuel increases?
formation of water becomes more significant --> lower emissions of carbon dioxide
How was the first fuel cell different from the "gas battery"?
fuel cell used alkaline electrolyte instead of dilute sulphuric acid
What was the first fuel cell called? Who Made it?
gas battery, William Grove
Fuel cell power plant advantages:
high quality, reliable power, only emit water vapor and warm air
Alkaline fuel cell advantages:
high voltage output & non-precious can be used as electrolytes
How is the hydrogen extracted?
natural gas, biogas, methanol
What has happened w/ hydrogen content?
percentage has increased, hydrogen is fuel of the future
How is a fuel cell similar to a battery?
supplies a current & provides electrical power as long as hydrogen and oxygen supplied
How are fuel cells classified?
type of electrolyte they use