In an ideal refrigeration cycle, the change in internal energy of the fluid is_____________?
Correct answer: C. 0
- A. +ve
- B. -ve
- C. 0
- D. Either of the above three; depends on the nature of refrigerant
Explanation
In a complete refrigeration cycle, the refrigerant returns to its initial state, so internal energy, being a state property, has zero net change. Individual components may show increases or decreases, but the cycle change is zero.
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