This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What is expression gives the efficiency of an ideal heat engine operating between a higher ... (Read 21 times)

mpobi80

  • Hero Member
  • *****
  • Posts: 519
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


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

flannelavenger

  • Sr. Member
  • ****
  • Posts: 322
Reply #1 on: Jul 28, 2018
Answer to Question 1

b

Answer to Question 2

e


mpobi80

  • Hero Member
  • *****
  • Posts: 519
Reply #2 on: Jul 28, 2018
TY


flannelavenger

  • Sr. Member
  • ****
  • Posts: 322
Reply #3 on: Jul 28, 2018
You're welcome


« previous next »
 

Did you know?

More than 50% of American adults have oral herpes, which is commonly known as "cold sores" or "fever blisters." The herpes virus can be active on the skin surface without showing any signs or causing any symptoms.

Did you know?

For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

Did you know?

Computer programs are available that crosscheck a new drug's possible trade name with all other trade names currently available. These programs detect dangerous similarities between names and alert the manufacturer of the drug.

Did you know?

Drying your hands with a paper towel will reduce the bacterial count on your hands by 45–60%.

Did you know?

Most women experience menopause in their 50s. However, in 1994, an Italian woman gave birth to a baby boy when she was 61 years old.

American women operating machine lathes in a munitions factory. American women operating machine lathes in a munitions factory.
Coolant circulates through the water jackets in the engine block and cylinder head. Coolant circulates through the water jackets in the engine block and cylinder head.
The air flowing into the engine can be directed through long or short runners for best performance ... The air flowing into the engine can be directed through long or short runners for best performance ...
The malfunction indicator lamp might be labeled “service engine soon,” which can cause ... The malfunction indicator lamp might be labeled “service engine soon,” which can cause ...
Remove the heat source, and check the skin for redness. Massage the area, and notice muscle ... Remove the heat source, and check the skin for redness. Massage the area, and notice muscle ...
Mechanisms for Regulating Bacterial Gene Expression Mechanisms for Regulating Bacterial Gene Expression
Video: How Hemoglobin Picks Up and Delivers Oxygen

For a complete list of videos, visit our video library