This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: What is the change in entropy when 50 g of ice melt at 0C? A) 14.7 cal/K B) 4.0 ... (Read 51 times)

bobbysung

  • Hero Member
  • *****
  • Posts: 519
on: Jul 29, 2018
What is the change in entropy when 50 g of ice melt at 0C?
 
  A)
 
  14.7 cal/K
 
  B)
 
  4.0 kcal/K
 
  C)
 
  zero
 
  D)
 
  -4.0 kcal/K
 
  E)
 
  -14.7 cal/K

Question 2

Beta rays can penetrate
 
  A)
 
  air only.
  B)
 
  a piece of paper.
  C)
 
  several millimeters of aluminum.
  D)
 
  several centimeters of lead.
  E)
 
  several meters of iron.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

xthemafja

  • Sr. Member
  • ****
  • Posts: 348
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

C


bobbysung

  • Member
  • Posts: 519
Reply 2 on: Jul 29, 2018
Gracias!

cam1229

  • Member
  • Posts: 329
Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

« previous next »
 

Did you know?

Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

Did you know?

Barbituric acid, the base material of barbiturates, was first synthesized in 1863 by Adolph von Bayer. His company later went on to synthesize aspirin for the first time, and Bayer aspirin is still a popular brand today.

Did you know?

There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

Did you know?

A cataract is a clouding of the eyes' natural lens. As we age, some clouding of the lens may occur. The first sign of a cataract is usually blurry vision. Although glasses and other visual aids may at first help a person with cataracts, surgery may become inevitable. Cataract surgery is very successful in restoring vision, and it is the most frequently performed surgery in the United States.

Did you know?

Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Bonding Partners and Energy May Change in a Chemical Reaction Bonding Partners and Energy May Change in a Chemical Reaction
Family interactions change in response to the developing child, and parenting characteristics, such ... Family interactions change in response to the developing child, and parenting characteristics, such ...
Defining Climate Change Defining Climate Change
Global Climate Change Global Climate Change
Climate change occurs over millions of years Climate change occurs over millions of years
Ice cores: Periods of rapid climate change especially in North Atlantic Ice cores: Periods of rapid climate change especially in North Atlantic
Video: Osteoporosis

For a complete list of videos, visit our video library