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

Author Question: What is the change in entropy of the ice when a 0.050-kg ice cube at 0C melts? The latent heat of ... (Read 94 times)

BrownTown3

  • Hero Member
  • *****
  • Posts: 564
What is the change in entropy of the ice when a 0.050-kg ice cube at 0C melts? The latent heat of fusion for water is 80 cal/g.
 
  What will be an ideal response?

Question 2

The electrons in a beam are moving at 18 m/s. (melectron = 9.11  10-31 kg, h = 6.
 
  626  10-34 J  s)
  (a) What is its de Broglie wavelength these electrons?
  (b) If the electron beam falls normally on a diffraction grating, what would have to be the spacing between slits in the grating to give a first-order maximum at an angle of 30 with the normal to the grating?



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lorealeza77

  • Sr. Member
  • ****
  • Posts: 356
Answer to Question 1

15 cal/K

Answer to Question 2

(a) 40 m (b) 81 m




BrownTown3

  • Member
  • Posts: 564
Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it


juliaf

  • Member
  • Posts: 344
Reply 3 on: Yesterday
Wow, this really help

 

Did you know?

Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.

Did you know?

Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

Acetaminophen (Tylenol) in overdose can seriously damage the liver. It should never be taken by people who use alcohol heavily; it can result in severe liver damage and even a condition requiring a liver transplant.

Did you know?

For pediatric patients, intravenous fluids are the most commonly cited products involved in medication errors that are reported to the USP.

For a complete list of videos, visit our video library