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Author Question: A certain automobile engine takes in 4.00 kJ of energy and performs 1.10 kJ of mechanical work in ... (Read 117 times)

KimWrice

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on: Jul 29, 2018
A certain automobile engine takes in 4.00 kJ of energy and performs 1.10 kJ of mechanical work in each cycle. (a) Calculate the engine's efficiency. (b) How much thermal energy is wasted in each cycle?
 
  What will be an ideal response?

Question 2

A thermodynamic engine absorbs 64 kcal of energy each cycle and exhausts 42 kcal.
 
  (a) What is the efficiency of this engine?
  (b) How much work does this engine do per cycle?


zhanghao

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  • Posts: 316
Reply #1 on: Jul 29, 2018
Answer to Question 1

(a) 27.5 (b) 2.90 kJ

Answer to Question 2

(a) 34 (b) 22 kcal


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