engineering physics MCQ #2788

A heat engine operates between 1000 K and 500 K. The maximum possible efficiency is

engineering physics MCQ #2788

  1. Question 1

    Q1. A heat engine operates between 1000 K and 500 K. The maximum possible efficiency is

    • A) 50%
    • B) 40%
    • C) 60%
    • D) 30%

    Answer: 50%

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