Author Question: A certain automobile tire has a volume of 0.0185 m3. If the absolute (or total) pressure in the tire ... (Read 154 times)

geodog55

  • Hero Member
  • *****
  • Posts: 530
A certain automobile tire has a volume of 0.0185 m3. If the absolute (or total) pressure in the tire is 500 kPa and the temperature is 298 K, how many molecules are there inside the tire? (R = 8.31 J/mol  K, NA = 6.022  1023 molecules/mol)
 
  A) 2.25  1023 molecules
  B) 2.25  1024 molecules
  C) 3.25  1023 molecules
  D) 3.25  1024 molecules
  E) 3.25  1025 molecules

Question 2

If the frequency of a light beam is doubled, what happens to the momentum of the photons in that beam of light?
 
  A) It stays the same.
  B) It is halved.
  C) It is doubled.
  D) It is reduced to one-fourth of its original value.
  E) It is increased to four times its original value.


jxjsniuniu

  • Sr. Member
  • ****
  • Posts: 343
Answer to Question 1

B

Answer to Question 2

C



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question


 

Did you know?

Cutaneous mucormycosis is a rare fungal infection that has been fatal in at least 29% of cases, and in as many as 83% of cases, depending on the patient's health prior to infection. It has occurred often after natural disasters such as tornados, and early treatment is essential.

Did you know?

It is difficult to obtain enough calcium without consuming milk or other dairy foods.

Did you know?

Earwax has antimicrobial properties that reduce the viability of bacteria and fungus in the human ear.

Did you know?

The familiar sounds of your heart are made by the heart's valves as they open and close.

Did you know?

The average person is easily confused by the terms pharmaceutics and pharmacology, thinking they are one and the same. Whereas pharmaceutics is the science of preparing and dispensing drugs (otherwise known as the science of pharmacy), pharmacology is the study of medications.

For a complete list of videos, visit our video library