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Question
Which of the following is not used as a rocket fuel?
Which of the following is not used as a rocket fuel?
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Solution
The correct option is D Liquid nitrogen
Liquid
Nitrogen is a liquid at very low temperature (-417 degrees Farenheit). At
normal temperature it is a gas. So, fill your tank with liquid nitrogen. Then
let it into your engine, where the heat from the the outside air turns the
liquid nitrogen into a high-pressure gas and expands and can harness the
expansion to push a piston, just like you harness the expansion of
high-pressure burning gasoline. Meanwhile, the cold engine must draw in heat
from the atmosphere to warm it back up.
Liquid Nitrogen is a liquid at very low temperature (-417 degrees Farenheit). At normal temperature it is a gas. So, fill your tank with liquid nitrogen. Then let it into your engine, where the heat from the the outside air turns the liquid nitrogen into a high-pressure gas and expands and can harness the expansion to push a piston, just like you harness the expansion of high-pressure burning gasoline. Meanwhile, the cold engine must draw in heat from the atmosphere to warm it back up.
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