find the threshold frequency of a metal who is binding energy is 259 kj/mol. (answer should...
The binding energy of electrons in a metal is 201 kJ/mol .Find the threshold frequency of the metal. Please explain how & the formulas! Thanks :)
The binding energy for mercury is 435 kJ/mol of photons. (a) Calculate the threshold frequency. (b) Calculate the maximum velocity of the electrons ejected when light of wavelength 200 nm strikes the mercury. (KE = ½ mv2 , mass of electron = 9.109 x 10-31 kg)
The binding energy of solid copper metal is 448.7 kJ/mol. When Cu metal is illuminated with light of a wavelength exactly one-half of its photoelectric threshold wavelength, what is the kinetic energy of the ejected electrons, in eV? Write the answer to 3 significant digits. If no electrons are ejected, write -1 as the answer.
15. A metal plate has a binding energy of 350.0 kJ/mol. If a photon with a wavelength of 275 nm strikes the surface, at what velocity will an electron be ejected? a. 1.75 x 106 m/s
The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, v0 .Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 5.87×1014s-1. E0 = _______ JWhat is the maximum kinetic energy will electrons be objective it when this metal is exposed to light with a wavelength of 265 nm?KEelectron = _______ J
The answer is C
38. What is the nuclear binding energy of iron-56 in kJ/mol? The mass of the iron-56 nucleus is 55.92068 amu. A. 7.90 x 1011 kJ/mol B. 2.78 × 109 kJ/mol C. 4.76 x 1010 kJ/mol D. 8.78 x 10-28 kJ/mol E. 5.38 x 101 KJ/mol
The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, Vo. Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 3.79 x 1014 -! Eo 25.11 x10-20 J With what maximum kinetic energy will electrons be ejected when this metal is exposed to light with a wavelength of 245 nm? 56.025 x10-19 -electron Incorrect
What is the binding energy in kJ/mol In for indium-115? kJ/mol The required masses (g/mol) are:-1.007831.00867114.90410 Submit Answer What is the binding energy in kJ/mol nucleons for silver-109? kJ/mol nucleons The required masses (g/mol) are:,-1.00783 ;,-1.00867 ;Be= 108.90470 Submit Answer What is the binding energy in kJ/mol nucleons for bromine-81? kJ/mol nucleons The required masses (g/mol) are:- 1.00783 ;-1.0086780.91630 Submit Answer
The minimum frequency of light needed to eject electrons from a metal is called the threshold frequency, v0. Find the minimum energy needed to eject electrons from a metal with a threshold frequency of 3.09 Times 10^14 s ^-1. With what maximum kinetic energy will electrons be ejected when this metal is exposed to light with a wavelength of lambda = 225 nm? KEelectron = .
1. Calculate the Work Function of a metal that has a threshold frequency of 9.54 x 1014 s-1. answer: 63.3*10^(-20)J 2. What is the wavelength of this light in nm? answer: 314nm 3. What would be the Kinetic Energy of an ejected photoelectron if 3.26 x 1015 s-1 light struck (hit) that same metal? answer: 1.53*10^(-18)J 4. What would be the velocity and De Broglie Wavelength of ejected photoelectron? answer: 1.83*10^(6)m/s 5.What is the wavelength of light (in nm) of...