Energy Transfers-Fuel Cells-C6
- Created by: Shannon
- Created on: 28-05-13 11:54
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- Energy Transfers-Fuel Cells
- Fuel cell advantages in space
- Produce water for astronauts
- No moving parts, lightweight
- Fuel cell advantages/ disadvantage-s
- Efficient, direct energy transfer, less pollution
- Poisonous catalysts, fossil fuels burnt to gain hydrogen and oxygen
- Exothermic reaction: 2H2+O2 ---> 2H2O
- Chemical energy given out as heat. A fuel cells converts the energy directly (no heat)
- Electrons exchanged at the cathode to the anode
- Oxidation: 2H2 ---> 4H+ +4e
- Reduction: 4H+ + O2 + 4e- ---> 2H2O
- Electrons gained and lost-redox reaction
- Oxidation: 2H2 ---> 4H+ +4e
- Reduction: 4H+ + O2 + 4e- ---> 2H2O
- Electrons gained and lost-redox reaction
- Electrons gained and lost-redox reaction
- Reduction: 4H+ + O2 + 4e- ---> 2H2O
- Oxidation: 2H2 ---> 4H+ +4e
- Electrons gained and lost-redox reaction
- Reduction: 4H+ + O2 + 4e- ---> 2H2O
- Fuel cell advantages in space
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