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← ScienceWhich risk increases when liquid rocket fuel reaches critical point?
A)Homogeneous phase becomes indistinguishable✓
B)Reaction rates become unpredictable
C)Tank pressure exceeds design limits
D)Crystallization causes valve obstruction
💡 Explanation
The homogeneous phase becomes indistinguishable because at the critical point, the *meniscus* separating liquid and gas disappears; therefore, controlling fuel vaporization becomes challenging, leading to engine instability, rather than other pressure or reaction-rate effects.
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