What is the average kinetic energy per molecule of an ideal gas ...

[APUS57]

What is the average kinetic energy per molecule of an ideal gas at a temperature of 300 K? Boltzmann's constant is k = 1.38  10-23 J/K.
 
  A)
 
  1.7  10-21 J
 
  B)
 
  8.3  10-21 J
 
  C)
 
  6.2  10-21 J
 
  D)
 
  2.1  10-21 J
 
  E)
 
  4.1  10-21 J

Question 2

What resolving power is needed to resolve spectral lines at 651.22 nm and 651.81 nm?
 
  A)
 
  1100
  B)
 
  1000
  C)
 
  1200
  D)
 
  1400
  E)
 
  1300

[marict]

Answer to Question 1

C

Answer to Question 2

A