MDCAT Physics MCQ #3368

A heat engine operates between 500K and 300K. What is its maximum efficiency?

MDCAT Physics MCQ #3368

  1. Question 1

    Q1. A heat engine operates between 500K and 300K. What is its maximum efficiency?

    • A) 20%
    • B) 30%
    • C) 40%
    • D) 60%

    Answer: 40%

    Explanation: Maximum efficiency = 1 - (T_cold/T_hot) = 1 - (300/500) = 0.4 or 40%. Other options are incorrect calculations.