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 68 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?

Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.

Did you know?

Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Did you know?

To combat osteoporosis, changes in lifestyle and diet are recommended. At-risk patients should include 1,200 to 1,500 mg of calcium daily either via dietary means or with supplements.

Did you know?

Illicit drug use costs the United States approximately $181 billion every year.

Did you know?

During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

Longer regions have more crossovers and thus higher recombinant frequencies Longer regions have more crossovers and thus higher recombinant frequencies
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 engine is rotated until the timing marks on the front of the crankshaft line up with zero ... The engine is rotated until the timing marks on the front of the crankshaft line up with zero ...
This Toyota cap has a warning—the check engine light will come on if not tightened until one ... This Toyota cap has a warning—the check engine light will come on if not tightened until one ...
Heat Stress and Wind Chill: Indices of Human Discomfort Heat Stress and Wind Chill: Indices of Human Discomfort
Bacterial small noncoding RNAs regulate gene expression Bacterial small noncoding RNAs regulate gene expression
Video: Factors that increase metabolic rate and heat production

For a complete list of videos, visit our video library