Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich outcome impairs a refrigerator's efficiency undergoing vapor-compression cycle?
A)Irreversible adiabatic compression of refrigerant✓
B)Isothermal expansion without phase change
C)Reversible heat transfer in the condenser
D)Subcooling to liquid at constant pressure
💡 Explanation
A decrease in refrigerator efficiency emerges due to irreversible adiabatic compression, because additional work input increases exhaust temperature via frictional heating; therefore efficiency declines, rather than idealized reversible compression conserving system entropy.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which risk increases when injecting fuel into a rocket engine combustion chamber at high velocity?
- Which consequence results when cryogenic liquid helium at 4.2K leaks into a poorly insulated MRI superconducting magnet?
- Which outcome results when exceeding the maximum allowable reverse voltage in a silicon PN junction diode?
- Which consequence results when Cobalt-60 undergoes beta decay?
- Which condition hinders gate dielectric scaling due to increased quantum effects?
- Which risk increases when rapid heating causes phase transitions in metals?