University Physics Volume 3
17th Edition
ISBN: 9781938168185
Author: William Moebs, Jeff Sanny
Publisher: OpenStax
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Textbook Question
Chapter 9, Problem 85AP
The separation between hydrogen atoms in a H2 molecule is about 0.075 nm. Determine the characteristic energy of rotation in eV.
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For a K*- CH ion pair, attractive and repulsive energies EA and ER, respectively, depend on
the distance between the ions r, according to
5.8 x 10-6
1.436
EA
and ER
For these expressions, energies are expressed in electron volts per K*- CH pair, and r is the
distance in nanometers.
a) If the net energy EN is just the sum of the two expressions above: EN = E, + ER, Find the
values of ro and E, ?
b) If curves of E, ER, and EN are
plotted in given figure, compare
the calculated values of ro and
E, with that from the graph.
2 am
0.00
010
0.20
0.30
040
0.70
00
1.00
Interatomic Separation, nm
Bonding Energy, eV
The forbidden energy bandgap of AIP is
2.43 eV. Determine the wavelength (in
nm) of an incident photon that can
interact with a valence electron and
elevate the electron into the conduction
band.
Oλ = 511 nm
Oλ = 419 nm
O λ = 882 nm
λ = 575 nm
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. What is the first excited rotational energy level for the CO molecule? (Give the your answer in meV.)
Chapter 9 Solutions
University Physics Volume 3
Ch. 9 - Check Your Understanding Why is the potential...Ch. 9 - Check Your Understanding What does the energy...Ch. 9 - Check Your Understanding If the dissociation...Ch. 9 - Check Your Understanding What happens to the...Ch. 9 - Check Your Understanding How does the magnitude of...Ch. 9 - Check Your Understanding What conditions are...Ch. 9 - What is the main difference between an ionic bond,...Ch. 9 - For the following cases, what type of bonding...Ch. 9 - Describe three steps to ionic bonding.Ch. 9 - What prevents a positive and negative ion from...
Ch. 9 - For the H2 molecule, why must the spins the...Ch. 9 - Does the absorption spectrum of the diatomic...Ch. 9 - Rank the energy spacing (E) of the following...Ch. 9 - Explain key features of a vibrational-rotation...Ch. 9 - Why is tbe equilibrium separation distance between...Ch. 9 - Describe the difference between a face-centered...Ch. 9 - In sodium chloride, how many Clatoms are “nearest...Ch. 9 - In cesium iodide, how many Clatoms are "nearest...Ch. 9 - The NaCl crystal structure is FCC. 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