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 74 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
Thanks for the timely response, appreciate it


nguyenhoanhat

  • Member
  • Posts: 332
Reply 3 on: Yesterday
Great answer, keep it coming :)

 

Did you know?

There can actually be a 25-hour time difference between certain locations in the world. The International Date Line passes between the islands of Samoa and American Samoa. It is not a straight line, but "zig-zags" around various island chains. Therefore, Samoa and nearby islands have one date, while American Samoa and nearby islands are one day behind. Daylight saving time is used in some islands, but not in others—further shifting the hours out of sync with natural time.

Did you know?

Certain chemicals, after ingestion, can be converted by the body into cyanide. Most of these chemicals have been removed from the market, but some old nail polish remover, solvents, and plastics manufacturing solutions can contain these substances.

Did you know?

Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.

Did you know?

More than 150,000 Americans killed by cardiovascular disease are younger than the age of 65 years.

Did you know?

Carbamazepine can interfere with the results of home pregnancy tests. If you are taking carbamazepine, do not try to test for pregnancy at home.

For a complete list of videos, visit our video library