This topic contains a solution. Click here to go to the answer

Author Question: Both the refrigerator and the heat pump take in heat and expel it at a higher temperature. Why don't ... (Read 81 times)

misspop

  • Hero Member
  • *****
  • Posts: 540
Both the refrigerator and the heat pump take in heat and expel it at a higher temperature. Why don't they have the same Coefficient of Performances?
 
  What will be an ideal response?

Question 2

The pressure in a gas is the result of the momentum transfer that occurs when the molecules bounce from the walls of the container.
 
  Indicate whether the statement is true or false



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

ultraflyy23

  • Sr. Member
  • ****
  • Posts: 312
Answer to Question 1

The COP is what you want divided by what is costs. In a refrigerator you want the absorbed heat but in the heat pump you want the expelled heat. Hence the COPs are different.

Answer to Question 2

TRUE





 

Did you know?

According to the FDA, adverse drug events harmed or killed approximately 1,200,000 people in the United States in the year 2015.

Did you know?

Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.

Did you know?

Drug abusers experience the following scenario: The pleasure given by their drug (or drugs) of choice is so strong that it is difficult to eradicate even after years of staying away from the substances involved. Certain triggers may cause a drug abuser to relapse. Research shows that long-term drug abuse results in significant changes in brain function that persist long after an individual stops using drugs. It is most important to realize that the same is true of not just illegal substances but alcohol and tobacco as well.

Did you know?

Though newer “smart” infusion pumps are increasingly becoming more sophisticated, they cannot prevent all programming and administration errors. Health care professionals that use smart infusion pumps must still practice the rights of medication administration and have other professionals double-check all high-risk infusions.

Did you know?

Blastomycosis is often misdiagnosed, resulting in tragic outcomes. It is caused by a fungus living in moist soil, in wooded areas of the United States and Canada. If inhaled, the fungus can cause mild breathing problems that may worsen and cause serious illness and even death.

For a complete list of videos, visit our video library