Physics for Scientists and Engineers, Vol. 3
Physics for Scientists and Engineers, Vol. 3
6th Edition
ISBN: 9781429201346
Author: Paul A. Tipler, Gene Mosca
Publisher: Macmillan Higher Education
Question
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Chapter 10, Problem 59P

(a)

To determine

Whether the molecule having a rotational energy and transition taking place from higher to lower energy absorbs the photon energy or not.

(b)

To determine

The energy of the first excited state when a transition takes place from its ground state to its second excited state

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A hypothetical NH molecule makes a rotational-level transition from l=3 to l=1 and gives off a photon of wavelength 1.800 nm in doing so. What is the seperation between the two atoms in this molecule if we model them as point masses? The mass of hydrogen 1.67 * 10^-27 kg, and the mass of nitrogen is 2.33 * 10^-26 kg.
The moment of inertia of water molecule about an axis bisecting the HOH angle is1.91x10-47 kg m2. Its minimum angular momentum about that axis (other than zero) is ℏ. Inclassical terms, how many revolutions per second do the hydrogen atoms make about the axiswhen in that state? Calculate the rotational constant (cm-1) and bond length of H2O. Does the bondlength seem reasonable?
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Physics for Scientists and Engineers, Vol. 3

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