Physics · Thermodynamics
For a refrigeration machine, what is the expression for the Coefficient of Performance (COP)? (Where Q2 = Heat extracted from the cold body, Q1 = Heat rejected to the surrounding)
- 1Q1Q1 - Q2
- 2Q2Q1 - Q2✓
- 3Q1Q2 - Q1
- 4Q2Q2 - Q1
Correct answer
Q2Q1 - Q2
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