Sustainable Energy
2nd Edition
ISBN: 9781337551663
Author: DUNLAP, Richard A.
Publisher: Cengage,
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Chapter 5, Problem 18P
To determine
Find the atomic mass of
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Find the average binding energy per nucleon of 2 Mo and 82 Kr. (For the atomic masses, see this table. Enter your answers to at least two decimal places.)
42
36
(a)
92 Mo
42
MeV/nucleon
82
(b)
Kr
36
MeV/nucleon
Question 1
An atom in the ground state
O has all electrons in the n 1 orbit
O has all electrons in the lowest energy orbits possible
O is finely divided
O will not absorb electromagnetik radiation of any wavelength
Question 2
Which of the following transitions in the Bohr hydrogen atom model affords emission of the
highest-energy photon? (R, = 2.18 x 10 1ª j)
Oni-6 1
O ni-1+nf-6
Consider a copper wire with a diameter of 1.99 mm.
(a) What is the drift speed of the electrons in the copper wire when a current of 13.0 A flows through it? Assume that each copper atom
contributes one free electron to the metal. The density of copper is 8.92 g/cm³.
x
How is the drift speed related to the current flowing in a wire? Consider the fact that there is one free electron per copper atom when
determining the charge density. m/s
(b) How does this drift speed compare to the random rms speed of an electron at 20.0°C? To make this comparison, determine the
random rms speed of an electron at 20.0°C using the ideal gas model and find the ratio of the two speeds.
Vims
Vd
Chapter 5 Solutions
Sustainable Energy
Ch. 5 - Prob. 1PCh. 5 - Prob. 2PCh. 5 - A sample of 137Cs (half-life = 30.1 years) decays...Ch. 5 - Prob. 4PCh. 5 - What are the decay products of the decay of the...Ch. 5 - Prob. 6PCh. 5 - Nuclide A has a half-life of 4 days, and nuclide B...Ch. 5 - 64Cu can decay by both decay and + decay. Draw an...Ch. 5 - At time t = 0 a sample contains 3.57 108 nuclei...Ch. 5 - Prob. 10P
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- At time t = 0 a sample contains 3.57 108 nuclei of a particular nuclide. Exactly one year later the sample contains 3.09 108 nuclei of the same species. Calculate the half-life of the decay.arrow_forwardAt t = 0 there are 4.11 1011 nuclei of a particular nuclide in a sample. The decay rate is measured to be 3.21 106 s1. Calculate the half-life.arrow_forwardConstruct a Frost circle for a planar seven-membered ring with one 2p orbital on each atom of the ring and show the relative energies of its seven π molecular orbitals. Which are bonding MOs, which are antibonding, and which are nonbonding?arrow_forward
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