Physics · Thermodynamics - Refrigeration Cycles
When the lower temperature of a refrigerating machine is fixed, how can its coefficient of performance (COP) be improved?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1By operating the machine at a higher speed
- 2By operating the machine at a lower speed
- 3By raising the higher temperature of the cycle
- 4By lowering the higher temperature of the cycle✓
Correct answer
By lowering the higher temperature of the cycle
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