Mathematics · Thermodynamics Calculations
A refrigerator is working as a reversible engine operating between T2 = 20°C and T1 = -10°C. The work needed to run this refrigerator is supplied by another engine that takes in energy at the rate of 500 W and operates at 50% efficiency. If the refrigerator freezes 5 kg of water at 0°C to ice at 0°C (latent heat of fusion LF = 334 kJ/kg) in n hours, then the value of n is closest to:
- 10.4✓
- 20.3
- 30.1
- 40.2
Correct answer
0.4
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