Тепловая машина, отдавая холодильнику 29 кДж теплоты, совершает за цикл работу 21 кДж. Определите КПД тепловой машины.

  1. 30 %
  2. 40 %
  3. 42 %
  4. 52 %

📝 Detailed explanation

Q₁ = A + Q₂ = 21 + 29 = 50 кДж.
η = A/Q₁ = 21/50 = 0,42 = 42%.
4 / 15 (27%)
Question 4 of 15
← Previous → Next Space — Show answer

🎯 Take a test on the topic «Тест по физике Тепловые двигатели 9 класс»

This topic contains 15 questions. Test your knowledge!

🔐 Log in to take the test

📚 All tests by subject «Физика»

View all collections and topics in Физика

Go to subject →

Report an error

Answers are unavailable

This test collection is closed. To get full access, please purchase 🌟 premium

Contact by email