Physics for Scientists and Engineers with Modern Physics
Physics for Scientists and Engineers with Modern Physics
10th Edition
ISBN: 9781337553292
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
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Chapter 42.2, Problem 42.3QQ
To determine

The ratio of the frequency of the photon that excited molecule 2 to the photon that excited molecule 1.

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The two nuclei in the carbon monoxide (CO) molecules are 0.1128 nm apart.  The mass of the carbon atom is 1.993x10-26 kg.  The mass of the oxygen atom is 2.656x10-26 kg.  Spectroscopic measurements show that adjacent vibrational energy levels for the CO molecule are 0.269 eV.   What is the effective spring constant of the CO molecule? (Give your answer in N/m.)
The wavelength of the emitted photon from the hydrogen molecule H2 is 2.30 μm (micrometers) when the vibrational quantum number decreases by one.  What is the effective "spring constant" for the H2 molecule in N/m ?What is the "zero point" energy (in eV) of the molecular vibration?
Recall from Section 14.3 that the average kinetic energy of an atom in a monatomic ideal gas is given by KE=(3/2)kT, where k = 1.38 x 10-23 J/K and T is the Kelvin temperature of the gas. Determine the de Broglie wavelength of a helium atom (mass = 6.65 x 10-27 kg) that has the average kinetic energy at room temperature (292 K). Number i 7.38E-11 Units m
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