What is the longest wavelength of light (nm)

UB ForumCategory: Mastering ChemistryWhat is the longest wavelength of light (nm)
Chen BoChen Bo Staff asked 7 years ago

It takes 245 kJ/mol to eject electrons from a certain metal surface. What is the longest

wavelength of light (nm) that can be used to eject electrons from the surface of this

metal via the photoelectric effect?

1) 165

2) 552

3) 488

4) 725

5) 233

1 Answers
Best Answer
Sajid AhmadSajid Ahmad Staff answered 7 years ago

It takes 245 kJ/mol to eject electrons from a certain metal surface. What is the longest
wavelength of light (nm) that can be used to eject electrons from the surface of this
metal via the photoelectric effect?
Solution:3) 488