A Carnot engine operates between 600 K and 300 K. Its maximum efficiency is:

A 25%

B 50%

C 75%

D 100%

✓ Correct Answer: Option B

Carnot efficiency = 1 − Tc/Th = 1 − 300/600 = 0.5 = 50%.

💡 Why is B) the correct answer?

The correct answer to the question "A Carnot engine operates between 600 K and 300 K. Its maximum efficiency is:" is Option B: 50%.

The other options — A) 25%, C) 75%, D) 100% — are incorrect for this MCAT Exam Prep question. As explained above: Carnot efficiency = 1 − Tc/Th = 1 − 300/600 = 0.5 = 50%.

📚 About This MCAT Exam Prep Practice Question

This 2-level MCAT Exam Prep question from the Chemical & Physical Foundations topic is part of BrainForge Quiz's free exam preparation library. Each question includes the correct answer and a detailed explanation to help you understand the underlying concept, not just memorize the answer.

How to use this page: Read the question above, consider all four options (A through D), then check the highlighted correct answer and explanation. For active timed practice, start a free MCAT Exam Prep practice test or use flashcards for spaced repetition review.

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A Carnot engine operates between 600 K and 300 K. Its maximum efficiency is:

✓ Correct Answer: Option B

📚 About This MCAT Exam Prep Practice Question

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