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Author Question: At what temperature is the rms speed of hydrogen molecules, which have a molecular weight of 2.02 ... (Read 144 times)

future617RT

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on: Jul 29, 2018
At what temperature is the rms speed of hydrogen molecules, which have a molecular weight of 2.02 g/mole, equal to 2000 m/s?
 
  A)
 
  17.0C
 
  B)
 
  34.0C
 
  C)
 
  51.0C
 
  D)
 
  68.0C
 
  E)
 
  72.0C

Question 2

State Huygen's principle.
 
  What will be an ideal response?


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yuyiding

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Reply #1 on: Jul 29, 2018
Answer to Question 1

C

Answer to Question 2

Every point on a wave front can be considered as a source of tiny wavelets that spread out in the forward direction at the speed of the wave itself. The new wave front is the envelope of all the wavelets - that is, tangent to all of them.


future617RT

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Reply #2 on: Jul 29, 2018
Thanks


yuyiding

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Reply #3 on: Jul 29, 2018
Welcome :)


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