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← ScienceWhich outcome would occur as cooling system cycles?
A)Refrigerant pressure drops during phase change✓
B)Volumetric pump efficiency always increases
C)Compressor work increases with subcooling
D)Condenser temperature rises during undercharging
💡 Explanation
Refrigerant pressure drops if phase change occurs, because this is due to latent heat absorption during evaporation with a fixed volume; therefore pressure decreases, rather than alternatives affecting the pump or system imbalances.
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