Something that scientists study that is cold could be liquid nitrogen!
Answer:
B because you will feel the moons gravitational force and not earths
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Explanation:
A.
Because no more heat is being added to the system
Answer:
(a) Two electrochemical half reactions for ethanol
is written below
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(b) The direct oxidation of the fuel will occur in a solid oxide fuel cell but we have to compete with other sets of chemical electrochemical reaction such as water-gas-shift reaction
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(c) The electrochemical half reaction that could convert ethanol directly into a fuel cell that conducts hydrogen ions is shown below
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(d) The half reactions that would be required are shown below
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