13 Questions
What is the primary form in which energy is released when fuel undergoes combustion?
Heat
What characteristic makes fuels very convenient for transportation?
High energy density
How is the energy released from fuels in fuel cells or flow batteries?
As electric power
Which of the following is a desirable property of a transportation fuel, according to the text?
Exothermic reaction with O2
Which of the following is NOT mentioned as an example of a transportation fuel in the text?
Hydrogen Peroxide
What is the primary form in which energy is released when fuel undergoes combustion, according to the text?
Heat
What percentage of the atmosphere is composed of O2, according to the text?
21%
What characteristic makes fuels very convenient for transportation, according to the text?
High energy density compared to other ways of carrying energy
Which property is desired in a transportation fuel according to the text?
Abundant availability in nature
What characteristic makes nitrogen a poor reactant for transportation fuels as mentioned in the text?
Too strong N≡N bond
Why should oxygen atoms be included in fuel according to the text?
To reduce harmful NOx emissions
What is the significance of having enthalpy of oxidation > 10 kJ g-1 for elements used to make fuels?
Higher energy release per unit mass
Why is it preferred not to carry more than one reactant on a vehicle for transportation fuels?
To facilitate reaction with atmospheric O2
Test your knowledge about fuels and their role in carrying energy. Learn about the chemical reactions that release energy and the importance of fuels in transportation.
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