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 202 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?

Before a vaccine is licensed in the USA, the Food and Drug Administration (FDA) reviews it for safety and effectiveness. The CDC then reviews all studies again, as well as the American Academy of Pediatrics and the American Academy of Family Physicians. Every lot of vaccine is tested before administration to the public, and the FDA regularly inspects vaccine manufacturers' facilities.

Did you know?

Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.

Did you know?

The top 10 most important tips that will help you grow old gracefully include (1) quit smoking, (2) keep your weight down, (3) take supplements, (4) skip a meal each day or fast 1 day per week, (5) get a pet, (6) get medical help for chronic pain, (7) walk regularly, (8) reduce arguments, (9) put live plants in your living space, and (10) do some weight training.

Did you know?

Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.

Did you know?

Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

Barriers to change Barriers to change
The Number of Children Americans Think Are Ideal The Number of Children Americans Think Are Ideal
Change in plasma metabolomics following glucose igestion Change in plasma metabolomics following glucose igestion
Binding change model for ATP synthase Binding change model for ATP synthase
Recent Climate Change Recent Climate Change
Change in Blood Pressure through the Systemic Circuit Change in Blood Pressure through the Systemic Circuit
Video: Forming urine ( influencing factors), Forming dilute urine & Forming concentrated urine

For a complete list of videos, visit our video library