Essential University Physics: Volume 2 (3rd Edition)
3rd Edition
ISBN: 9780321976420
Author: Richard Wolfson
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Question
Chapter 37, Problem 35P
(a)
To determine
The energy of vibrational ground state of
HCl
(b)
To determine
The energies of photons emitted in transitions among adjacent vibrational states, for the cases
Δ l = + 1 Δ l = − 1
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The laboratory operation of a Laser is related to
the atomic transition problem. Let E - E, = ho
for two atomic states, u(@) be the radiation
density, N be the number of atoms in state 1, and
N2 that in state 2. B12 is the Enstein coffeicent for
absorption, B21 that transition probability for
emission, and A the spontaneous emission
coefficient. Find N2/N1
O B12/[A+ B21]
O B1zu(@)/[A + B21u(@)]
O B1zu(@)/A
O B1zu(@)/B21
O Au(@)/B12
Questio
Not yet answered
Marked out of
P Flag question
Forbidden transitions and selection rules suggest
that
O a photon has energy
O a photon has mass
O a photon has linear momentum
O a photon has angular momentum
a photon has parity
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?
Consider a two-electron spin system in a
singlet state.
a. If a measurement of one of the
electrons shows that it is in a state with sz
= 1/2, what is the probability of obtaining
another state with sz= +1/2?
b. If a measurement of one of the
electrons shows that it is in a state with sx
= 1/2, what is the probability of obtaining
another state with sy = +1/2?
Chapter 37 Solutions
Essential University Physics: Volume 2 (3rd Edition)
Ch. 37.1 - Prob. 37.1GICh. 37.2 - If a scientist uses microwave technology to study...Ch. 37.3 - Prob. 37.3GICh. 37 - If you push two atoms together to form a molecule,...Ch. 37 - Prob. 2FTDCh. 37 - Prob. 3FTDCh. 37 - Does it make sense to distinguish individual NaCl...Ch. 37 - Prob. 5FTDCh. 37 - Prob. 6FTDCh. 37 - Radio astronomers have discovered many complex...
Ch. 37 - Prob. 8FTDCh. 37 - Prob. 9FTDCh. 37 - Prob. 10FTDCh. 37 - Prob. 11FTDCh. 37 - Prob. 12FTDCh. 37 - Prob. 13FTDCh. 37 - Prob. 14FTDCh. 37 - Prob. 15FTDCh. 37 - Prob. 16ECh. 37 - Prob. 17ECh. 37 - Prob. 18ECh. 37 - Prob. 19ECh. 37 - Prob. 20ECh. 37 - Prob. 21ECh. 37 - Prob. 22ECh. 37 - Prob. 23ECh. 37 - Prob. 24ECh. 37 - Prob. 25ECh. 37 - Prob. 26ECh. 37 - Prob. 27ECh. 37 - Prob. 28ECh. 37 - Prob. 29PCh. 37 - Prob. 30PCh. 37 - Prob. 31PCh. 37 - Prob. 32PCh. 37 - Prob. 33PCh. 37 - Prob. 34PCh. 37 - Prob. 35PCh. 37 - Prob. 36PCh. 37 - Prob. 37PCh. 37 - Prob. 38PCh. 37 - Prob. 39PCh. 37 - Prob. 40PCh. 37 - Prob. 41PCh. 37 - Prob. 42PCh. 37 - Prob. 43PCh. 37 - Prob. 44PCh. 37 - Prob. 45PCh. 37 - Prob. 46PCh. 37 - Prob. 47PCh. 37 - Prob. 48PCh. 37 - Prob. 49PCh. 37 - Prob. 50PCh. 37 - Prob. 51PCh. 37 - Prob. 52PCh. 37 - Prob. 53PCh. 37 - Prob. 54PCh. 37 - The critical field in a niobium-titanium...Ch. 37 - The transition from the ground state to the first...Ch. 37 - Prob. 57PCh. 37 - Prob. 58PCh. 37 - Youre troubled that Example 37.1 neglects the mass...Ch. 37 - Prob. 60PCh. 37 - The Madelung constant (Section 37.3) is...Ch. 37 - Prob. 62PCh. 37 - (a) Count the number of electron states N(E) with...Ch. 37 - Prob. 64PCh. 37 - Prob. 65PCh. 37 - Prob. 66PCh. 37 - Prob. 67PCh. 37 - Prob. 68PPCh. 37 - Prob. 69PPCh. 37 - Prob. 70PPCh. 37 - Prob. 71PP
Knowledge Booster
Similar questions
- The moment of inertia of an H2O molecule about an axis bisecting the HOH angle is 1.91 x 10-47 kg m2 Its minimum angular momentum about that axis (other than zero) is h. In classical terms. how many revolutions per second do the H atoms make about the axis when in that state? What is the minimum energy needed to excite the rotation of an H2O molecule about the axis?arrow_forwardThe figure shows a potential energy curve for the interaction of two neutral atoms. The two-atom system is in a vibrational state indicated by the heavy solid horizontal line. O eV -0.2 eV+ -0.4 eVF -0.6 eV -0.8 eV- -1.0 eV- -1.2 eV- -1.4 eVF -1.6 ev (a) At r = r1, what are the approximate values of the kinetic energy K, the potential energy U, and the quantity K+U? K = eV U = eV K+U = eV (b) What minimum (positive) amount of energy must be supplied to cause these two atoms to separate? eV Additi. L Matorialsarrow_forwardConsider 1.50 mols of a substance in thermal equilibrium at a temperature of 87.0 °C whose atoms can occupy only two energy levels separated by 5.00x102 eV, where 1 eV (electron volt) is an energy unit equal to 1.60x10 19 J. kB = 1.38x10 23 J/K , %3D NA 6.02x1023 mol1 Eg a) Find the probability of occupation of the ground state with energy E1 and the 1st excited state with energy E2? b) How many atoms in the substance (on average) are in 5.00x10 eV the ground state and in the 1st excited state? Earrow_forward
- Chapter 38, Problem 071 For the arrangement of Figure (a) and Figure (b), electrons in the incident beam in region 1 have energy E has a height of U1 = 823 ev and the potential step = 617 ev. What is the angular wave number in (a) region 1 and (b) region 2? (c) What is the reflection coefficient? (d) If the incident beam sends 5.29 x 105 electrons against the potential step, approximately how many will be reflected? V= 0 V< 0 x = 0 region 1 region 2 (a) Energy --E- Electron (b)arrow_forwardConsider hydrogen in the ground state, 100 . (a) Use the derivative to determine the radial position for which the probability density, P(r), is a maximum. (b) Use the integral concept to determine the average radial position. (This is called the expectation value of the electrons radial position.) Express your answers into terms of the Bohr radius, a0. Hint: The expectation value is the just average value, (c) Why are these values different?arrow_forwardThe following wavelengths are found among the many radiations emitted by singly ionized helium: 24.30 nm, 25.63 nm, 102.5 nm, 320.4 nm. If we group the transitions in helium as we did in hydrogen by identifying the final state n0 and initial state n, to which series does each transition belong?arrow_forward
- The energy levels of the Bohr model for the atom can be expressed mathematically as En -13.6 eV, where Z is the atomic number, and n is the quantum number. This model is reasonably accurate for hydrogen and for singly ionized helium. The photon associated with the transition of an electron from the ground state to the first excited state in singly ionized helium has a different wavelength than that associated with a similar transition in hydrogen. Which of the following correctly describes the wavelengths of these two photons in terms of the energy level diagrams for hydrogen and helium? The photon absorbed by hydrogen has a longer wavelength than that absorbed by helium, because the energy levels in the diagram for hydrogen are more closely spaced than in the diagram for helium. B The photon absorbed by hydrogen has a shorter wavelength than that absorbed by helium, because the energy levels in the diagram for hydrogen are more closely spaced than in the diagram for helium. The photon…arrow_forwardA sodium atom of mass 3.82 * 10^-26 kg vibrates with simple harmonic motion in crystal. The potential energy increases by 0.0075 eV when the atom is displaced 0.014 nm from its equilibrium position. Find the wavelength of a photon emitted when n=6 to n=1 transition occurs.arrow_forwardHow many electrons can occupy the system with l=0, l=2 and l=4. What is number of possible orientations of the orbital angular momentum with l=4? What is the smallest z-component of the orbital angular momentum?arrow_forward
- Question 9. While most transition metals have work functions corresponding to photon frequencies that are larger (higher) than visible light, alkali and alkaline earth metals have low-energy work functions. For example, calcium has a work function of o = 4.3419×10-19 J. (a) What is the initial state n, for the hydrogen emission lines at visible wavelengths (i.e., those with n = 2) for the lowest-energy photon that would eject an electron from calcium? %3! (b) If the colors of the visible hydrogen emission lines (n; = 3 to n = 6) are red, green, blue and %3D violet, which colors are capable of ejecting the electrons from calcium? (c) The energy of the emitted photon you identified in part (a), is not identical to the workfunction of calcium. Therefore, the electron is ejected from the metal surface with some kinetic energy (i.e., energy is conserved in the photoelectric effect process). What would the velocity of the electron ejected from calcium (in meters per second)?arrow_forwardWhat is the transition rate for neon atoms in a He-Ne laser if the energy drop for the 632.8 nm emission is 1.96 eV and the power output is 1.0 mW.arrow_forwardTake h to have an exact value of 6.63 x 10-34 J-s for significant figure purposes, and use hc = 1.24 x 10³ eV nm (three significant figures). Q Search Part A If the electron in a hydrogen atom is to make a transition from the first excited state to the second excited state, what frequency of photon is needed? 5| ΑΣΦ xa Xb Part B a b f= 7.55 10¹4 √x vx X Submit Previous Answers Request Answer X |X| X Incorrect; Try Again; 5 attempts remaining X.10n X end ? Hz R Insert 7:44 PM 12/7/2022 deletearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
University Physics Volume 3PhysicsISBN:9781938168185Author:William Moebs, Jeff SannyPublisher:OpenStax
Principles of Physics: A Calculus-Based TextPhysicsISBN:9781133104261Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning
University Physics Volume 3
Physics
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:OpenStax
Principles of Physics: A Calculus-Based Text
Physics
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning
Physics for Scientists and Engineers with Modern ...
Physics
ISBN:9781337553292
Author:Raymond A. Serway, John W. Jewett
Publisher:Cengage Learning