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The electronic spectrum of the molecule butadiene,
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Chapter 10 Solutions
Physical Chemistry
- Show that the value of the Rydberg constant per photon, 2.179 1018 J, is equivalent to 1312 kJ/mol photons.arrow_forwardThe Lyman series of spectral lines for the H atom, in the ultraviolet region, arises from transitions from higher levels to n = 1. Calculate the frequency and wavelength of the least energetic line in this series.arrow_forwardConsider burning ethane gas, C2H6 in oxygen (combustion) forming CO2 and water. (a) How much energy (in J) is produced in the combustion of one molecule of ethane? (b) What is the energy of a photon of ultraviolet light with a wavelength of 12.6 nm? (c) Compare your answers for (a) and (b).arrow_forward
- 6.9 If a string of decorative lights includes bulbs with wave-lengths of 480, 580, and 700 mm, what are the frequencies of the lights? Use Figure 6.6 to determine which colors are in the set.arrow_forwardIn a FranckHertz experiment on sodium atoms, the first excitation threshold occurs at 2.103 eV. Calculate the wavelength of emitted light expected just above this threshold. (Note: Sodium vapor lamps used in street lighting emit spectral lines with wavelengths 5891.8 and 5889.9 Å.)arrow_forwardWhich of the following transitions are allowed in the electronic emission spectrum of a hydrogenic atom: (i) 2s → 1s, (ii) 2p → 1s, (iii) 3d → 2p?arrow_forward
- What is the energy (in J) of a photon from a microwave oven with a frequency of 6.00 MHz?arrow_forwardIn an X-ray photoelectron experiment. a photon of wavelength 100 pm ejects an electron from the inner shell of an atom and it emerges with a speed of 2.34 x 104 km s-1. Calculate the binding energy of the electron.arrow_forwardWhat is the frequency of the photons emitted by hydrogen atoms when they undergo transitions from n = 5 to n = 3?arrow_forward
- Neutrons, like electrons and photons, are particle-waves whose diffraction patterns can be used to determine the structures of molecules. Calculate the kinetic energy (in J) of a neutron with wavelength 51.1 pm.arrow_forward2. Calculate the wavelenth , in meters, of microwave radiation that corresponds to an energy of 2.63 J/mol of photons.arrow_forward
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