Modern Physics
3rd Edition
ISBN: 9781111794378
Author: Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher: Cengage Learning
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Question
Chapter 11, Problem 1Q
To determine
The modes in which diatomic molecules store energy, modes corresponding to least and most excitation energy.
Expert Solution & Answer
Answer to Problem 1Q
The modes in which diatomic molecules store energy, modes corresponding to least and most excitation energy are given.
Explanation of Solution
The modes in which diatomic molecules store energy are – Translational kinetic energy, Rotational kinetic energy and Vibrational energy.
Mode corresponding to least excitation energy is Translational kinetic energy. Mode corresponding to most excitation energy is Vibrational energy.
Conclusion:
The modes in which diatomic molecules store energy, modes corresponding to least and most excitation energy are given.
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Students have asked these similar questions
1. A model for the potential energy interaction between the two nitrogen atoms in the
N2 molecule is proposed that has the form:
v(4) = 4E, (4)* - ()']
12
a. Find the position of the potential minimum and its value there, in terms of o and Eo,
respectively. What do these parameters represent physically about the molecule?
b. Draw a hand sketch of V(r) showing rmin, V(rmin) and where V crosses the r axis.
c. If the atom is disturbed from its equilibrium by a small amount, show that the
7.56.
frequency of oscillation is w =
d. For molecular nitrogen, the bond length is 1.1 x 10-1°m, the bond (binding) energy is
9.79 eV (15.66 x 10-19 J), the mass is 14 amu = 23.38 x 10-27 kg. In the spectroscopy
laboratory, this vibration is measured to be 8.8 x 1013 Hz. Is this a good model for
the interatomic potential? (Recall o = 2n times frequency in Hz)
where m is the mass of a nitrogen atom.
o atom2) The interatomic interaction energy for two atoms (with masses m₁ and
m2) of a diatomic molecule is given as:
A
B
Eint. (r)
12
r
oms(A where r is the distance between these two atoms (A and B are positive con-troni
(bondstants) Find the binding energy, equilibrium (bond) distance between two
ilc in teratoms and vibrational frequency of the molecule in terms of given parameters.
Molecular oxygen (O2) has a vibrational state transition energy of approximately 250 meV
a) Calculate the relative populations of the vibrational ground state and first excited states of a collection of O2 molecules at 300 K.
b) Calculate the probability of finding an O2 molecule in its vibrational ground state at 1200 K
Chapter 11 Solutions
Modern Physics
Ch. 11.2 - Compare the effective force constant for the CO...Ch. 11 - Prob. 1QCh. 11 - Prob. 2QCh. 11 - Prob. 3QCh. 11 - Prob. 4QCh. 11 - Prob. 5QCh. 11 - Prob. 7QCh. 11 - Prob. 8QCh. 11 - Prob. 9QCh. 11 - Prob. 1P
Ch. 11 - Use the data in Table 11.2 to calculate the...Ch. 11 - The CO molecule undergoes a rotational transition...Ch. 11 - Prob. 4PCh. 11 - Prob. 5PCh. 11 - Prob. 6PCh. 11 - Prob. 7PCh. 11 - The v = 0 to v = 1 vibrational transition of the...Ch. 11 - Consider the HCl molecule, which consists of a...Ch. 11 - Prob. 10PCh. 11 - Prob. 11PCh. 11 - Prob. 12PCh. 11 - Prob. 13PCh. 11 - Prob. 14PCh. 11 - Prob. 15PCh. 11 - Prob. 18P
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