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Physical Chemistry 2 - Work function - HELP NEEDED

  • Thread starter gunner05
  • Start date
3
0
I really need help with the following question,

If the work function of Rb is 2.09 eV, what is the number of electrons ejected, their energy in eV, and their velocity, from a microjoule pulse of 500nm laser light?
 

Answers and Replies

t!m
147
6
This is a standard application of the photoelectric effect - what have you tried so far? What equations do you have that may be useful?
 
3
0
I have K.E = hv-(work function)
and v=speed of light/wavelength
E = nhv
 
3
0
This is a standard application of the photoelectric effect - what have you tried so far? What equations do you have that may be useful?
I have K.E = hv-(work function)
and v=speed of light/wavelength
E = nhv
 
t!m
147
6
You have pretty much everything you need then, just plug away. If you get stuck, show us where.
 

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