Question

In: Chemistry

(1)When copper metalis bombarded with an electron beam, Xrays are emitted.

 

(1)When copper metalis bombarded with an electron beam, Xrays are emitted. Calculate the energy (in J) associated with the X-ray photons if their wavelength is 0.154 nm

(2)Describe the photoelectric effect, and explain how it shows that energy absorption by matter is aquantum (discontinuous) process.

(3) Solar photodissociation of water has been suggested as a source of hydrogen fuel. Thermochemical data gives

∆H°rxn= +285.8 kJ/mol for the photodissociation reaction:

H2O(l)+hv ---> H2(g) + 1/2 O2(g)

Calculate the maximum wavelength (in nm) of a photon that would provide the energy necessary to dissociate one

molecule of water.

Solutions

Expert Solution

queen_honey_blossom answered 2 years ago
Next > < Previous

Related Solutions

What is the frequency, in s−1, of the light emitted when the electron in a hydrogen...
What is the frequency, in s−1, of the light emitted when the electron in a hydrogen atom drops from the energy level ni = 12 to nf = 5? Calculate the de Broglie wavelength, in nanometers, associated with a 145 g baseball traveling at a speed of 179 km/h? How many orbitals have the values n = 4, l = 3, and ml = -2? Without referring to any tables or listings in the text, name the elements provided for...
What is the wavelength ( in nanometers ) of the light emitted when an electron in...
What is the wavelength ( in nanometers ) of the light emitted when an electron in a hydrogen atom makes a transition from an orbital in n = 5 to an orbital in n = 3 ? Your answer should have four significant figures.
Calculate the energy (J) of the photon emitted when an electron in the hydrogen atom falls...
Calculate the energy (J) of the photon emitted when an electron in the hydrogen atom falls from n=5 to n=2 . Use 2.178 x 10-18 J for the constant in the Bohr equation. Answer should be in scientific notation, e.g. 3000 = 3E3 I have no idea how to get this problem help me!!
Calculate the frequency of the light emitted when an electron in a hydrogen atom makes each...
Calculate the frequency of the light emitted when an electron in a hydrogen atom makes each of the following transitions. Express in inverse seconds. a) n=4?n=3 b) n=5?n=1 c) n=5?n=4 d) n=6?n=5
Calculate the frequency of the photon emitted when the electron jumps from the n = 3...
Calculate the frequency of the photon emitted when the electron jumps from the n = 3 to the n = 2 energy level.
Calculate the frequency of the light emitted when an electron in a hydrogen atom makes each...
Calculate the frequency of the light emitted when an electron in a hydrogen atom makes each of the following transitions. Express in inverse seconds. a) n=4?n=3 b) n=5?n=1 c) n=5?n=4 d) n=6?n=5
find the velocity of an electron emitted by a metal whose threshold frequency is 2.4×10^14 when...
find the velocity of an electron emitted by a metal whose threshold frequency is 2.4×10^14 when it is exposed to visible light of wavelenght 4.80×10^-7m
a) Calculate the wavelength of x ray emitted when 35-keV electron collies with on molybdenum target....
a) Calculate the wavelength of x ray emitted when 35-keV electron collies with on molybdenum target. b) A single electron orbiting a hydrogen nucleus moves from energy level E4 to E2. Calculate the energy in joules of the photon emitted due to this energy change. c)As an electron orbits the nucleus, it can be thought of as a standing wave. Calculate the frequency of the wave if the electron is in the 4th energy level of hydrogen atom
What is the maximum kinetic energy of an electron emitted in the beta decay of a...
What is the maximum kinetic energy of an electron emitted in the beta decay of a free neutron?
Find the velocity of an electron emitted by a metal whose threshold frequency is 2.24×1014 s−1...
Find the velocity of an electron emitted by a metal whose threshold frequency is 2.24×1014 s−1 when it is exposed to visible light of wavelength 4.89×10−7 m .
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT