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← ScienceWhich limitation arises when a cryogenic fluid undergoes phase transition?
A)Significant pressure drop increases
B)Heat transfer coefficient reduces✓
C)Viscosity increases exponentially
D)Density remains effectively constant
💡 Explanation
Boiling leads to vapor formation, causing film boiling resistance; this heat flux reduction occurs because of a decrease in active nucleate sites, therefore limiting heat extraction, rather than other flow-related properties being severely impacted.
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