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

Author Question: The change in entropy of 20.0 moles of ideal monatomic constant volume gas as it changes from an ... (Read 150 times)

fox

  • Hero Member
  • *****
  • Posts: 540
on: Jul 29, 2018
The change in entropy of 20.0 moles of ideal monatomic constant volume gas as it changes from an initial temperature 300 K to its final temperature is 200 J/K. What is the final temperature of the gas?
 
  A)
 
  669 K
 
  B)
 
  562 K
 
  C)
 
  427 K
 
  D)
 
  187 K
 
  E)
 
  345 K

Question 2

An object is placed on an optical bench. A lens with a focal length of 15 cm is placed 30 cm from the object. A diverging lens with a focal length of -10 cm is placed 7.0 cm beyond that.
 
  Where is the final image formed, relative to the second lens? A)
 
  45 cm beyond the diverging lens
  B)
 
  20 cm behind the diverging lens
  C)
 
  18 cm behind the diverging lens
  D)
 
  17 cm beyond the diverging lens
  E)
 
  30 cm beyond the diverging lens


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

lgoldst9

  • Sr. Member
  • ****
  • Posts: 372
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

C


fox

  • Hero Member
  • *****
  • Posts: 540
Reply #2 on: Jul 29, 2018
Both answers were spot on, thank you once again


lgoldst9

  • Sr. Member
  • ****
  • Posts: 372
Reply #3 on: Jul 29, 2018
Great! Please up vote :D


« previous next »
 

Did you know?

Though the United States has largely rejected the metric system, it is used for currency, as in 100 pennies = 1 dollar. Previously, the British currency system was used, with measurements such as 12 pence to the shilling, and 20 shillings to the pound.

Did you know?

Side effects from substance abuse include nausea, dehydration, reduced productivitiy, and dependence. Though these effects usually worsen over time, the constant need for the substance often overcomes rational thinking.

Did you know?

Liver spots have nothing whatsoever to do with the liver. They are a type of freckles commonly seen in older adults who have been out in the sun without sufficient sunscreen.

Did you know?

The highest suicide rate in the United States is among people ages 65 years and older. Almost 15% of people in this age group commit suicide every year.

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Blood pressure and blood volume relationship Blood pressure and blood volume relationship
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
The More Things Change, The More They Say the Same: Dividing the Nation's Income The More Things Change, The More They Say the Same: Dividing the Nation's Income
Ancient Climate Change Ancient Climate Change
By 2100, significant change will be in the far northern latitudes, parts of Asia, and Sub-Saharan By 2100, significant change will be in the far northern latitudes, parts of Asia, and Sub-Saharan
Volume Changes Volume Changes
Video: Chemical Equilibrium between N2O4 (colorless gas) and NO2 (brown gas)

For a complete list of videos, visit our video library