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← ScienceWhich outcome arises when a refrigeration cycle uses zeotropic refrigerant blend near its critical point?
A)Temperature glide during phase change increases✓
B)Compressor motor efficiency significantly improves
C)System cooling capacity remains constant
D)Superheat requirement at evaporator decreases
💡 Explanation
When a zeotropic blend approaches its critical point, variations in composition during phase change become more pronounced because the liquid and vapor phases have increasingly different concentrations causing widening temperature glide. Therefore temperature glide increases during phase change, rather than efficiency gain, stable capacity, smaller superheat; because blend separation exacerbates non-ideal behaviors.
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