Find the photon energy, frequency, wavelength, and wavenumber
for the photon emitted in the n=5 ...
Find the photon energy, frequency, wavelength, and wavenumber
for the photon emitted in the n=5 n=3 transition in the hydrogen
atom. Is this photon visible? If not is it in the UV or IR portion
of the spectrum?
Calculate the energy of the emitted photon as well as the
wavelength and frequency of electromagnetic radiation emitted from
the hydrogen atom when the electron undergoes the transition from n
= 5 to n = 4.
(a) Find the photon energy and wavelength for the series limit
(shortest wavelength) in the Balmer series (nf
= 2) for the hydrogen atom.
___________eV
_________ nm
(b) Calculate the wavelength for the three longest wavelengths in
this series.
longest
____________nm
second longest
____________nm
third longest
____________nm
Calculate the photon energy and wavelength for the n = 4 to n =
2 transition and n = 4 to n = 3 transition for the hydrogen atom, H
(Z = 1). Do not include uncertainty.
E ( 5--> 3) =
E ( 5 --> 2 ) =
λ ( 5--> 3 ) =
λ ( 5 --> 2) =
An electron in the hydrogen atom falls from the 2p to 1s state and a photon is emitted. What is the wavelength of the emitted photon (in nm)?
Select one:
a. 20
b. 91
c. 122
d. 364
e. 138
A black light produces UV light with wavelengths below 400 nm. When the chemical quinine (which is in tonic water) is exposed to light with a wavelength of 383 nm, it becomes excited and then re-emits light at 450. nm.
Is the re-emitted light lower or higher energy than the light that was absorbed? Is it lower or higher frequency? Answer this question without a calculation.
What is the energy of a single photon of the UV light that was...
A. Determine the wavelength of a photon (in nm) whose
energy per photon is 2.73 x 10-19
J.
B. Consider the reaction equation for combustion of
C6H8O2. What is the sum of the
coefficients for the products?
C. Calculate the energy (kJ/mol) of photons of
wavelength 615 nm.
D. Determine the energy of a photon (in Joules) whose
frequency is 6.181 x 1015 Hz.
An X-ray photon with a wavelength of 0.979 nm strikes a surface.
The emitted electron has a kinetic energy of 984 eV.
What is the binding energy of the electron in kJ/mol? [Note that
KE = 12mv2 and 1 electron volt (eV) =
1.602×10−19J.]
1.
A) Calculate the wavelength of maximum energy emission and the
total energy emitted each of the following objects: a) A tree, with
a surface temperature of 18 oC and an emissivity 0.98 (2); b) A
lake, with a surface temperature of 10 oC and an emissivity of
0.98(2).
B) Calculate the surface temperature of the following objects
with a wavelength of maximum energy emission of: a) 10
micrometers(1); b) 500 nanometers (1).
C) Calculate the surface temperature of the...