Chemistry, 29.05.2020 09:57, lilyrockstarmag
In order to comply with the requirement that energy be conserved, Einstein showed in the photoelectric effect that the energy of a photon (h) absorbed by a metal is the sum of the work function (), the minimum energy needed to dislodge an electron from the metal's surface, and the kinetic energy (Ek) of the electron: h = + Ek. When light of wavelength 357.4 nm falls on the surface of potassium metal, the speed (u) of the dislodged electron is 5.8×105 m/s. What is (in kJ/mol) of potassium?
Answers: 2
Chemistry, 22.06.2019 00:00, 2024daisjavien
Which actions would increase the rate at salt dissolves in water? stir the water? crush the salt? use less water? heat the water? cool the salt
Answers: 3
In order to comply with the requirement that energy be conserved, Einstein showed in the photoelectr...
Biology, 28.02.2020 05:44