MDCAT Physics MCQ #3398

A heat engine operates between two temperatures, 500 K and 300 K. What is its Carnot efficiency?

MDCAT Physics MCQ #3398

  1. Question 1

    Q1. A heat engine operates between two temperatures, 500 K and 300 K. What is its Carnot efficiency?

    • A) 0.2
    • B) 0.4
    • C) 0.6
    • D) 0.8

    Answer: 0.4

    Explanation: η = 1 - (T_c / T_h) = 1 - (300 / 500) = 0.4. Other options miscalculate or misunderstand Carnot efficiency.