engineering physics MCQ #2749

The coefficient of performance (COP) of a refrigerator is given by

engineering physics MCQ #2749

  1. Question 1

    Q1. The coefficient of performance (COP) 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_cold / T_hot

    Answer: T_cold / (T_hot - T_cold)

    Explanation: COP = Q_cold / W = T_cold / (T_hot - T_cold), a measure of the refrigerator's efficiency.