The carbon-to-hydrogen ratio in methane is
1:4
1:1
4:1 - Answers 1:4
A fuel cell generates electricity by
-directly combusting a fuel
-both of these
-electrochemically converting chemical energy - Answers electrochemically converting chemical energy
The country that has pledged a carbon neutral economy is
-U.S.A.
-none of these
-Germany - Answers none of these
Hydrogen bonds occur between molecules of
- HCl
-H2O
-CH4 - Answers H2O
If deuterium fuses with tritium, the nuclear reaction output will be
-neutron and helium
-neutron, helium, and energy
-only neutron - Answers neutron, helium, and energy
Cost of the hydrogen production via water electrolysis using solar and wind power generation is
,-high
-moderate
-low - Answers high
One of the best options to make the power generation sustainable is the hydrogen
-production, storage and use
-production and storage
-production - Answers production, storage and use
The main components of fuel and electrolytic cells are
-absolutely different
-quite similar
-quite different - Answers quite similar
Methane is
-a metallic hydride
-a saline hydrate
-a molecular compound - Answers a molecular compound
The stationary fuel cells are on market
-in Japan
-in USA
-both of these - Answers both of these
Hydrogen has
-one isotope
-three isotopes
-two isotopes - Answers three isotopes
Hydrogen is chemically/electrochemically most active as
-H3
, -H2
-H - Answers H
The electrolytic production of hydrogen is
-an undeveloped technology
-an unknown technology
-a fully-developed technology - Answers a fully-developed technology
Generally, fuel cells can be fueled by
-both of these
-CH4
-H2 - Answers both of these
Currently, the most valuable motivation for developing the hydrogen economy
-environmental
-economical
-political - Answers environmental
Development of the hydrogen technology would need
-substantial government support
-minor government support
-no government support - Answers substantial government support
The energy content of hydrogen per unit of weight has
-seven times of energy of coal
-three times the energy of gasoline
-both of these - Answers both of these
One of the challenges for commercialization of fuel cells is
-low voltage of a single fuel cell