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Fuel and Energy Quiz

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Questions and Answers

What is the primary form in which energy is released when fuel undergoes combustion?

Light energy

Electric power

Heat (correct)

Kinetic energy

What characteristic makes fuels very convenient for transportation?

High chemical reactivity

Low energy density

Low chemical reactivity

High energy density (correct)

How is the energy released from fuels in fuel cells or flow batteries?

As light energy

As heat

As electric power (correct)

As kinetic energy

Which of the following is a desirable property of a transportation fuel, according to the text?

Exothermic reaction with O2 Signup and view all the answers

Which of the following is NOT mentioned as an example of a transportation fuel in the text?

Hydrogen Peroxide Signup and view all the answers

What is the primary form in which energy is released when fuel undergoes combustion, according to the text?

Heat Signup and view all the answers

What percentage of the atmosphere is composed of O2, according to the text?

21% Signup and view all the answers

What characteristic makes fuels very convenient for transportation, according to the text?

High energy density compared to other ways of carrying energy Signup and view all the answers

Which property is desired in a transportation fuel according to the text?

Abundant availability in nature Signup and view all the answers

What characteristic makes nitrogen a poor reactant for transportation fuels as mentioned in the text?

Too strong N≡N bond Signup and view all the answers

Why should oxygen atoms be included in fuel according to the text?

To reduce harmful NOx emissions Signup and view all the answers

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 Signup and view all the answers

Why is it preferred not to carry more than one reactant on a vehicle for transportation fuels?

To facilitate reaction with atmospheric O2 Signup and view all the answers