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Student Questions Beyond Hydrogen: The New Chemistry of Fuel Cells 1. What are two compounds that might be used to produce hydrogen? 2. How many carbon atoms are there in a methanol molecule? 3. How many carbon atoms are there in an ethanol molecule? 4. What atmospheric gas can be converted into methanol using a fuel cell? 5. What main part of a fuel cell is made out of a polymer? 6. What metal is found in both the anode and cathode of most fuel cells? 7. At which electrode does oxidation take place in a fuel cell? 8. At which electrode does reduction take place in a fuel cell? 9. Fuels are oxidized in fuel cells. What substance is reduced in a fuel cell? 10. What type of ions pass through the membrane between the anode and the cathode? 11. Very little of the chemical energy released from the fuel used in a fuel cell is released as heat. In what form is the fuel’s chemical energy released? Answers to Student Questions Beyond Hydrogen: The New Chemistry of Fuel Cells 1. Whataretwocompoundsthatmightbeusedtoproducehydrogen? Water and methane are two compounds that might be used to produce hydrogen. 2. Howmanycarbonatomsarethereinamethanolmolecule? A methanol molecule contains one carbon atom. 3. Howmanycarbonatomsarethereinanethanolmolecule? An ethanol molecule contains two carbon atoms. 4. Whatatmosphericgascanbeconvertedintomethanolusingafuelcell? Carbon dioxide from the atmosphere can be converted to methanol using a fuel cell. 5. Whatmainpartofafuelcellismadeoutofapolymer? The membrane is made of polymer. 6. Whatmetalisfoundinboththeanodeandcathodeofmostfuelcells? Platinum is found in both anodes and cathodes of most fuel cells. 7. Atwhichelectrodedoesoxidationtakeplaceinafuelcell? Oxidation in fuel cells takes place at the anode. 8. Atwhichelectrodedoesreductiontakeplaceinafuelcell? Reduction in fuel cells takes place at the cathode. 9. Fuels are oxidized in fuel cells. What substance is reduced in a fuel cell? Oxygen is reduced in a fuel cell. 10.What type of ions pass through the membrane between the anode and the cathode? Cations or positively-charged ions pass through the membrane. 11.Very little of the chemical energy released from the fuel used in a fuel cell is released as heat. In what form is the fuel’s chemical energy released? The chemical energy of the fuel cell is released in the form of electrical current.PDF Image | BEYOND HYDROGEN
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