« previous next »

Author Question: The compressor in a certain Carnot refrigerator performs 480 J of work to remove 150 J of heat from ... (Read 91 times)

skymedlock

  • Hero Member
  • *****
  • Posts: 561
on: Jul 29, 2018
The compressor in a certain Carnot refrigerator performs 480 J of work to remove 150 J of heat from the interior of the refrigerator. How much heat must the coils behind the refrigerator discharge into the kitchen?
 
  A) 110 J
  B) 150 J
  C) 330 J
  D) 480 J
  E) 630 J

Question 2

A 2.0-kg block of aluminum at 50C is dropped into 5.0 kg of water at 20C and the temperature is allowed to stabilize.
 
  What is the total change in entropy during this process, assuming no heat is exchanged with the environment? The specific heat of aluminum is 910 J/(kgK) and the specific heat of water is 4190 J/(kgK). A) 8.2 J/K
  B) 10 J/K
  C) 3.3  10-2 J/K
  D) 3.8  10-3 J/K
  E) 2.4  10-3 J/K


dmurph1496

  • Sr. Member
  • ****
  • Posts: 343
Reply #1 on: Jul 29, 2018
Answer to Question 1

This is awesome you took your the time to answer these questions. You have been so helpful.

Answer to Question 2

A


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
« previous next »
 

Did you know?

Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

Did you know?

Glaucoma is a leading cause of blindness. As of yet, there is no cure. Everyone is at risk, and there may be no warning signs. It is six to eight times more common in African Americans than in whites. The best and most effective way to detect glaucoma is to receive a dilated eye examination.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

Did you know?

The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

Did you know?

Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.

Inflammation. Inflammation is characterized by the presence of swelling, redness, heat, and pain. Sw Inflammation. Inflammation is characterized by the presence of swelling, redness, heat, and pain. Sw
Antonio López García, New Refrigerator. Antonio López García, New Refrigerator.
Use caution if using a steel scraper to remove a gasket from aluminum parts. It is best to use a ... Use caution if using a steel scraper to remove a gasket from aluminum parts. It is best to use a ...
The heat range of a spark plug is determined by the distance the heat has to flow from the tip to ... The heat range of a spark plug is determined by the distance the heat has to flow from the tip to ...
Dr. J. B. Zabludowski of Berlin, Germany, Performs Massage of the Ankle, c. 1910. Dr. J. B. Zabludowski of Berlin, Germany, Performs Massage of the Ankle, c. 1910.
How did muscle work around eyeball? How did muscle work around eyeball?
Video: Secondary Active Transport

For a complete list of videos, visit our video library