Hydrogen Fuel Cell
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| fuel cell | device in which the energy of a chemical reaction is converted directly into electricity.
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| Does a fuel cell run down like a battery? | No
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| What does a fuel cell need to operate? | it operates as long as fuel and an oxidant are supplied.
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| anode | positive end of an electric circuit
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| cathode | negative end of an electric circuit
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| What seperates the anode and the cathode? | electrolytes
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| electrolytes | are substances that allow ions to pass through them.
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| ions | particles formed when a neutral atom or molecule gains or loses one or more electrons
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| what flows to the anode? | fuel
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| what flows to the cathode? | oxidant
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| what does the chemical reaction between the fuel and oxidant produce? | electric current
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| What is supplied to the anode? | hydrogen
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| What is supplied to the cathode? | oxidant
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| what does the fuel cell do to the hydrogen atom? | the fuel cell strip electrons from the hydrogen atom
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| Where does the electron go after it is stripped from the hydrogen atom? | electrons move from the anode through the electric circuit to the cathode, creating an electric current that can be tapped to provide power.
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| where does the electron-deficient hydrogen atoms go? | to the cathode
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| What happens after the electron difficient hydrogen atom go to the cathode? | the electrons that was previously stripped from the hydrogen atom, recombine with the electron dificient hydrogen atom
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| What happens after the electron and the electron dificient hydrogen atom combine? | the oxygen from the air reacts with the hydrogen to form water
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| what does the aerospace industry uses as fuel for their airplanes? | uses liquid hydrogen as a fuel for rockets
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| What are the benefits of using liquid hydrogen as fuel for the planes? | low density, which would decrease the amount of energy needed at takeoff increase the distance the plane can fly
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| Spacecraft use hydrogen as a primary rocket fuel that reacts with what? | fluorine or oxygen to produce energy.
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