EGEE 420 ANSWERS AND QUESTIONS SET A+
✔✔Gibbs energy of a fuel cell reaction should be________. - ✔✔negative
✔✔Using SOFC, the total efficiency could be up to_______. - ✔✔80%
✔✔ The energy content of Hydrogen per unit of weight has:
-both of these
-seven times energy of coal
-three times energy of gasoline - ✔✔both of these
✔✔development of the hydrogen technology would need... - ✔✔substantial government
support
✔✔one of the challenges for commercialization of fuel cells is____.
-low voltage of a single fuel cell
-low efficiency
-high cost - ✔✔high cost
✔✔Hydrogen bonds occur between molecules of___. - ✔✔H2O
✔✔the main components of fuel and electrolytic cells are: - ✔✔quite similar
✔✔molecular hydrogen exists in:
-significant quantities in nature
-very large quantities in nature
-small quantities in nature - ✔✔small quantities
✔✔commercialization of fuel cell technologies is mainly for: - ✔✔portable, stationary
and automotive power generation applications
✔✔the electrolytic production of hydrogen is: - ✔✔a fully-developed technology
, ✔✔The stationary fuel cells are on market in:
-US
-Japan
-both - ✔✔both
✔✔If deuterium fuses with tritium, the nuclear reaction output will be:
-neutron, helium, and energy
-only neutron
-neutron and helium - ✔✔neutron, helium, and energy
✔✔methane is - ✔✔a molecular compound
✔✔the carbon-to-hydrogen ration in methane is: - ✔✔1:4
✔✔the country that has pledged a carbon neutral economy is:
-US
-Germany
-None of these - ✔✔none of these
✔✔Hydrogen has how many isotopes? - ✔✔three
✔✔A fuel cell generates electricity by
-electrochemically converting chemical energy
-directly combusting a fuel
-both - ✔✔electrochemically converting chemical energy
✔✔Hydrogen is chemically/electrochemically most active as:
-H
-H2
-H3 - ✔✔H
✔✔Generally, FCs can be fueled by:
-CH4
-H2
-both - ✔✔both
✔✔cost of the hydrogen production via water electrolysis using solar-wind power
generation is:
-high
-low
-moderate - ✔✔high
✔✔currently, the most valuable motivation for developing the hydrogen economy:
-environmental
✔✔Gibbs energy of a fuel cell reaction should be________. - ✔✔negative
✔✔Using SOFC, the total efficiency could be up to_______. - ✔✔80%
✔✔ The energy content of Hydrogen per unit of weight has:
-both of these
-seven times energy of coal
-three times energy of gasoline - ✔✔both of these
✔✔development of the hydrogen technology would need... - ✔✔substantial government
support
✔✔one of the challenges for commercialization of fuel cells is____.
-low voltage of a single fuel cell
-low efficiency
-high cost - ✔✔high cost
✔✔Hydrogen bonds occur between molecules of___. - ✔✔H2O
✔✔the main components of fuel and electrolytic cells are: - ✔✔quite similar
✔✔molecular hydrogen exists in:
-significant quantities in nature
-very large quantities in nature
-small quantities in nature - ✔✔small quantities
✔✔commercialization of fuel cell technologies is mainly for: - ✔✔portable, stationary
and automotive power generation applications
✔✔the electrolytic production of hydrogen is: - ✔✔a fully-developed technology
, ✔✔The stationary fuel cells are on market in:
-US
-Japan
-both - ✔✔both
✔✔If deuterium fuses with tritium, the nuclear reaction output will be:
-neutron, helium, and energy
-only neutron
-neutron and helium - ✔✔neutron, helium, and energy
✔✔methane is - ✔✔a molecular compound
✔✔the carbon-to-hydrogen ration in methane is: - ✔✔1:4
✔✔the country that has pledged a carbon neutral economy is:
-US
-Germany
-None of these - ✔✔none of these
✔✔Hydrogen has how many isotopes? - ✔✔three
✔✔A fuel cell generates electricity by
-electrochemically converting chemical energy
-directly combusting a fuel
-both - ✔✔electrochemically converting chemical energy
✔✔Hydrogen is chemically/electrochemically most active as:
-H
-H2
-H3 - ✔✔H
✔✔Generally, FCs can be fueled by:
-CH4
-H2
-both - ✔✔both
✔✔cost of the hydrogen production via water electrolysis using solar-wind power
generation is:
-high
-low
-moderate - ✔✔high
✔✔currently, the most valuable motivation for developing the hydrogen economy:
-environmental
