Physics · Thermodynamics and Propulsion
Why is liquid hydrogen chosen as the fuel in a cryogenic engine?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Because it is highly cost-effective compared to standard kerosene-based rocket fuels.
- 2Because it provides a very high specific impulse and energy output per unit mass.✓
- 3Because it is completely non-flammable under ambient conditions.
- 4Because it can be easily stored at room temperature without high pressure.
Correct answer
Because it provides a very high specific impulse and energy output per unit mass.
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