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 77 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?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

Did you know?

Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

Giardia is one of the most common intestinal parasites worldwide, and infects up to 20% of the world population, mostly in poorer countries with inadequate sanitation. Infections are most common in children, though chronic Giardia is more common in adults.

Did you know?

Once thought to have neurofibromatosis, Joseph Merrick (also known as "the elephant man") is now, in retrospect, thought by clinical experts to have had Proteus syndrome. This endocrine disease causes continued and abnormal growth of the bones, muscles, skin, and so on and can become completely debilitating with severe deformities occurring anywhere on the body.

A camshaft position actuator used in a cam-in-block engine. A camshaft position actuator used in a cam-in-block engine.
A typical variable cam timing control valve. The solenoid is controlled by the engine computer and ... A typical variable cam timing control valve. The solenoid is controlled by the engine computer and ...
An accessory belt tensioner. Most tensioners have a mark that indicates normal operating location. ... An accessory belt tensioner. Most tensioners have a mark that indicates normal operating location. ...
Higher-Level Thinking Skills Used in Massage Therapy Higher-Level Thinking Skills Used in Massage Therapy
Mechanisms of Heat Transfer Mechanisms of Heat Transfer
Percentage of higher-income Canadian households Percentage of higher-income Canadian households
Video: Baroreceptor Reflex

For a complete list of videos, visit our video library