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

Author Question: A Carnot refrigerator takes heat from water at 0C and rejects heat to a room at 12C. Suppose that ... (Read 73 times)

burchfield96

  • Hero Member
  • *****
  • Posts: 610
A Carnot refrigerator takes heat from water at 0C and rejects heat to a room at 12C. Suppose that 92.0 grams of water at 0C are converted to ice at 0C by the refrigerator.
 
  Calculate the mechanical energy that must be supplied to the refrigerator. The heat of fusion of water is 3.34  105 J/kg.

Question 2

An ideal Carnot engine operates between reservoirs having temperatures of 125C and -20C. Each cycle the heat expelled by this engine is used to melt 30.0 g of ice at 0.00C.
 
  The heat of fusion of water is 3.34  105 J/kg and the heat of vaporization of water is 2.25  106 J/kg.
  (a) How much work does this engine do each cycle?
  (b) How much heat per cycle does this engine absorb at the hot reservoir?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

Pariscourtney

  • Sr. Member
  • ****
  • Posts: 352
Answer to Question 1

1350 J

Answer to Question 2

(a) 5740 J (b) 15,800 J




burchfield96

  • Member
  • Posts: 610
Reply 2 on: Jul 29, 2018
Great answer, keep it coming :)


shewald78

  • Member
  • Posts: 340
Reply 3 on: Yesterday
Gracias!

 

Did you know?

Cucumber slices relieve headaches by tightening blood vessels, reducing blood flow to the area, and relieving pressure.

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?

After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

Did you know?

The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

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.

For a complete list of videos, visit our video library