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← ScienceWhich outcome reduces efficiency when liquid rocket fuel evaporates?
A)Increased nozzle throat blockage risk
B)Decreased fuel density entering pump✓
C)Combustion chamber pressure instability
D)Oxidizer-fuel mixing ratio deviation
💡 Explanation
Reduced fuel density occurs because vaporization absorbs heat, reducing the liquid's coolness through latent heat of vaporization, therefore the pump receives a less dense fuel rather than designed values, throwing off mass flow assumptions.
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