engineering physics MCQ #2758

A heat engine operates between 1000 K and 500 K. Its efficiency is

engineering physics MCQ #2758

  1. Question 1

    Q1. A heat engine operates between 1000 K and 500 K. Its efficiency is

    • A) 50%
    • B) 25%
    • C) 75%
    • D) 100%

    Answer: 50%

    Explanation: Efficiency = 1 - (T_sink / T_source) = 1 - (500/1000) = 0.5 or 50%.