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← ScienceWhich outcome occurs when a refrigerator's evaporator coil ices over?
A)Reduced cooling efficiency and compressor overheating✓
B)Increased refrigerant pressure and condenser efficiency
C)Decreased energy consumption of evaporator fan
D)Improved heat transfer within insulated compartment
💡 Explanation
Icing causes reduced cooling because the phase transition of the refrigerant, specifically evaporation, is impaired. The latent heat transfer decreases due to the thermal resistance of the ice. Therefore, the compressor works harder, overheating rather than cooling efficiently.
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