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← ScienceWhich consequence develops when the liquid-vapor interface of a cryocooler's working fluid completely vanishes?
A)System pressure reaches a steady-state
B)Coefficient of performance decreases sharply✓
C)Heat leakage becomes insignificant
D)Refrigerant subcooling rises exponentially
💡 Explanation
The performance drops because surface tension driven convection (Marangoni effect) becomes ineffective; therefore heat transfer declines severely, rather than a constant pressure because the liquid needed for vaporization is depleted.
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