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Author Question: What is expression gives the efficiency of an ideal heat engine operating between a higher ... (Read 69 times)

mpobi80

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on: Jul 28, 2018
What is expression gives the efficiency of an ideal heat engine operating between a higher temperature Th and a lower temperature Tc (both expressed in kelvins)?
 a. = 1 + Tc / Th
  b. = 1  Tc / Th
  c. = 1  Th / Tc
  d. = 1  Tc
  e. = Tc / Th

Question 2

What is the expression for efficiency () in terms of the work W done by the system and the heat Q added to it?
 a. = WQ
  b. = Q/W
  c. = Q + W
  d. = Q + 273K
  e. = W/Q


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flannelavenger

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Reply #1 on: Jul 28, 2018
Answer to Question 1

b

Answer to Question 2

e


mpobi80

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Reply #2 on: Jul 28, 2018
TY


flannelavenger

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Reply #3 on: Jul 28, 2018
You're welcome


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