A monatomic gas is cooled by 50 K at constant volume when 831 J ...

[MirandaLo]

A monatomic gas is cooled by 50 K at constant volume when 831 J of energy is removed from it. How many moles of gas are in the sample?
 
  A)
 
  2.50 mol
  B)
 
  2.15 mol
  C)
 
  1.50 mol
  D)
 
  1.33 mol
  E)
 
  none of the above

Question 2

For very small objects at very low speeds, the drag force is directly proportional to the magnitude of the velocity. The proportionality constant depends on
 
  A)
 
  the viscosity of the fluid.
  B)
 
  the size of the object.
  C)
 
  the shape of the object.
  D)
 
  all of the above choices.
  E)
 
  none of the above choices.

[ladyjames123]

Answer to Question 1

D

Answer to Question 2

D