engineering physics MCQ #2782

The coefficient of performance of a refrigerator is given by

engineering physics MCQ #2782

  1. Question 1

    Q1. The coefficient of performance of a refrigerator is given by

    • A) T_cold / (T_hot - T_cold)
    • B) T_hot / (T_hot - T_cold)
    • C) (T_hot - T_cold) / T_cold
    • D) T_hot / T_cold

    Answer: T_cold / (T_hot - T_cold)

    Explanation: COP = Q_cold / W = T_cold / (T_hot - T_cold), derived from the definition of COP and the Carnot refrigerator.