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| Q. |
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» A. Hydrogen | |
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Explanation: 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 |
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