Which of the following is the best fuel in terms of energy released per gram of fuel?
A. Hydrogen
B. Methane
C. Ethanol
D. Butane
Answer: Option A
Solution(By Examveda Team)
The amount of energy released increases with the number of bonds present in the chemical substance or fuel. That is because each bond has a certain amount of energy stored in it therefore the more bonds the more energy is stored and more energy is released if these bonds break through combustion. Theoretical values of energy released per gram of fuel (in joules/ gram) are: Hydrogen: 142.5 KJ/g; Methane: 55.6 KJ/ g; Ethanol: 29.7 KJ/g; Butane: 49.6KJ/g.Related Questions on Chemistry
Which of the following phenomenon is considered responsible for Global Warming?
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B. Fire in coal mines
C. Dry farming
D. Monsoon
E. Trade winds
The nucleus of an atom consists of
A. electrons and neutrons
B. electrons and protons
C. protons and neutrons
D. All of the above
The number of moles of solute present in 1 kg of a solvent is called its
A. molality
B. molarity
C. normality
D. formality
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