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

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 50 times)

BrownTown3

  • Hero Member
  • *****
  • Posts: 564
on: Jul 29, 2018
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
Reply #1 on: Jul 29, 2018
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
:D TYSM

scikid

  • Member
  • Posts: 300
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.

Did you know?

Illness; diuretics; laxative abuse; hot weather; exercise; sweating; caffeine; alcoholic beverages; starvation diets; inadequate carbohydrate consumption; and diets high in protein, salt, or fiber can cause people to become dehydrated.

Did you know?

People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

Did you know?

Hippocrates noted that blood separates into four differently colored liquids when removed from the body and examined: a pure red liquid mixed with white liquid material with a yellow-colored froth at the top and a black substance that settles underneath; he named these the four humors (for blood, phlegm, yellow bile, and black bile).

Did you know?

The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.

Life-history cube, a classification of fish, mammals, and altricial birds based on three dimensionle Life-history cube, a classification of fish, mammals, and altricial birds based on three dimensionle
Inflammation. Inflammation is characterized by the presence of swelling, redness, heat, and pain. Sw Inflammation. Inflammation is characterized by the presence of swelling, redness, heat, and pain. Sw
Change in Drawing Abilities from Early to Middle Childhood Drawings become more realistic as fine m Change in Drawing Abilities from Early to Middle Childhood Drawings become more realistic as fine m
Change in air temperature at various air flow rates for a 7 pass operation Change in air temperature at various air flow rates for a 7 pass operation
The Global Impact of Climate Change The Global Impact of Climate Change
Consistency and Change in Personality Over the Lifespan Consistency and Change in Personality Over the Lifespan
Video: Subunits of DNA And Semi Conservative Replication

For a complete list of videos, visit our video library