Fundamentals of Physics, Binder Ready Version
10th Edition
ISBN: 9781118230640
Author: Halliday, David; Resnick, Robert; Walker, Jearl
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 39, Problem 67P
To determine
To find:
a) The separation energy between the lowest two energy levels for a container
b) The ratio of the thermal energy of the atoms to this energy separation
c) The temperature at which the thermal energy equals the energy separation
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
(b) Calculate the half width in nanometers for Doppler broadening of the 4s S 4p transition for atomic nickel at 361.939 nm (3619.39 Å) at a temperature of 20,000 K in both wavelength and frequency units.
(e) Calculate the speed that an iron atom undergoing the 4s S 4p transition at 385.9911 nm (3859.911 Å) would have if the resulting line appeared at the rest wavelength for the same transition in nickel.
(f) Compute the fraction of a sample of iron atoms at 10,000 K that would have the velocity calculatedin (e).
(g) Create a spreadsheet to calculate the Doppler half width DlD in nanometers for the nickel and iron lines cited in (b) and (e) from 3000–10,000 K.
(h) Consult the paper by Gornushkin et al. (note 10) and list the four sources of pressure broadening that they describe. Explain in detail how two of these sources originate in sample atoms.
7.129 A technique called photoelectron spectroscopy is usedto measure the ionization energy of atoms. A gaseoussample is irradiated with UV light, and electrons areejected from the valence shell. The kinetic energies ofthe ejected electrons are measured. Because the energyof the UV photon and the kinetic energy of the ejectedelectron are known, we can write where ν is the frequency of the UV light, and m and uare the mass and velocity of the electron, respectively.In one experiment the kinetic energy of the ejectedelectron from potassium is found to be 5.34 × 10−19 Jusing a UV source of wavelength 162 nm. Calculate theionization energy of potassium. How can you be surethat this ionization energy corresponds to the electron inthe valence shell (i.e., the most loosely held electron)?
Physics
Consider a B-G cavity chamber with equilibrium thickness copper walls. It is first filled with a mass m of air, then by the same mass of hydrogen. E=0.80 MeV. Assuming identical photo irradiations in the two cases,
1. Show the computation for the density of air and hydrogen
2. what is the charge ratio.
Chapter 39 Solutions
Fundamentals of Physics, Binder Ready Version
Ch. 39 - Prob. 1QCh. 39 - Prob. 2QCh. 39 - Prob. 3QCh. 39 - Prob. 4QCh. 39 - Prob. 5QCh. 39 - Prob. 6QCh. 39 - Prob. 7QCh. 39 - Prob. 8QCh. 39 - Prob. 9QCh. 39 - Prob. 10Q
Ch. 39 - Prob. 11QCh. 39 - Prob. 12QCh. 39 - Prob. 13QCh. 39 - Prob. 14QCh. 39 - Prob. 15QCh. 39 - Prob. 1PCh. 39 - Prob. 2PCh. 39 - Prob. 3PCh. 39 - Prob. 4PCh. 39 - Prob. 5PCh. 39 - Prob. 6PCh. 39 - Prob. 7PCh. 39 - Prob. 8PCh. 39 - Prob. 9PCh. 39 - Prob. 10PCh. 39 - Prob. 11PCh. 39 - Prob. 12PCh. 39 - Prob. 13PCh. 39 - Prob. 14PCh. 39 - Prob. 15PCh. 39 - Prob. 16PCh. 39 - Prob. 17PCh. 39 - Prob. 18PCh. 39 - Prob. 19PCh. 39 - Prob. 20PCh. 39 - Prob. 21PCh. 39 - Prob. 22PCh. 39 - Prob. 23PCh. 39 - Prob. 24PCh. 39 - Prob. 25PCh. 39 - Prob. 26PCh. 39 - Prob. 27PCh. 39 - Prob. 28PCh. 39 - Prob. 29PCh. 39 - Prob. 30PCh. 39 - Prob. 31PCh. 39 - Prob. 32PCh. 39 - Prob. 33PCh. 39 - Prob. 34PCh. 39 - Prob. 35PCh. 39 - Prob. 36PCh. 39 - Prob. 37PCh. 39 - Prob. 38PCh. 39 - Prob. 39PCh. 39 - Prob. 40PCh. 39 - Prob. 41PCh. 39 - Prob. 42PCh. 39 - Prob. 43PCh. 39 - Prob. 44PCh. 39 - Prob. 45PCh. 39 - Prob. 46PCh. 39 - Prob. 47PCh. 39 - Prob. 48PCh. 39 - Prob. 49PCh. 39 - Prob. 50PCh. 39 - Prob. 51PCh. 39 - Prob. 52PCh. 39 - Prob. 53PCh. 39 - Prob. 54PCh. 39 - Prob. 55PCh. 39 - Prob. 56PCh. 39 - Prob. 57PCh. 39 - Prob. 58PCh. 39 - Prob. 59PCh. 39 - Prob. 60PCh. 39 - Prob. 61PCh. 39 - Prob. 62PCh. 39 - Prob. 63PCh. 39 - Prob. 64PCh. 39 - A diatomic gas molcculc consistsof two atoms of...Ch. 39 - Prob. 66PCh. 39 - Prob. 67PCh. 39 - Prob. 68PCh. 39 - Prob. 69PCh. 39 - Prob. 70PCh. 39 - An old model of a hydrogen atom has the charge e...Ch. 39 - Prob. 72PCh. 39 - Prob. 73P
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, physics and related others by exploring similar questions and additional content below.Similar questions
- There is no limit to the size ahydrogen atom can attain, provided it is free from disruptive outside influences. In fact, radio astronomers have detected radiationfrom large, so-called “Rydberg atoms” in the diffuse hydrogen gasof interstellar space. (a) Find the smallest value of n such that theBohr radius of a single hydrogen atom is greater than 8.0 microns,the size of a typical single-celled organism. (b) Find the wavelength of radiation this atom emits when its electron drops fromlevel n to level n - 1. (c) If the electron drops one more level, fromn - 1 to n - 2, is the emitted wavelength greater than or lessthan the value found in part (b)? Explain.arrow_forward(a) What is the separation in energy between the lowest two energy levels for a container 20 cm on a side containing argon atoms? Assume, for simplicity, that the argon atoms are trapped in a one-dimensional well 20 cm wide. The molar mass of argon is 39.9 g/mol. (b) At 300 K, to the nearest power of ten, what is the ratio of the thermal energy of the atoms to this energy separation? (c) At what temperature does the thermal energy equal the energy separation?arrow_forward475 cm /volt-s, and E, = 1.1 eV, 6? Given these data for Si: 4, = 1350 cm/volt-s, H calculate the following. a) The lifetimes for the electron and for the hole. b) The intrinsic conductivity a at room temperature. c) The temperature dependence of o, assuming that electron collision is dominated by phonon scattering, and plot log o versus 1/T. %3D 7. Repeat Problem 6 for Ge, using Tables 6 L and 6 ?arrow_forward
- (a) Calculate the energy in eV of an IR photon of frequency 2.00 x 1013 Hz (b) How many of these photons would need to be absorbed simultaneously by atightly bound molecule to break it apart?arrow_forwardCheck Your Understanding If a=3+4i , what is the product a* a?arrow_forward(a) If the position of a chlorine ion in a membrane ismeasured to an accuracy of 1.00 μm , what is its minimumuncertainty in velocity, given its mass is 5.86×10−26 kg ?(b) If the ion has this velocity, what is its kinetic energy in eV,and how does this compare with typical molecular bindingenergies?arrow_forward
- (a) Using the microscopic cross sections from Hubbel et al (1975), calculate the mass attenuation coefficients for Compton scattering from the following elements: U, W, Pt, Fe and Al at the following energies: 0.1, 0.5, and 1 MeV.arrow_forwardYou are on an interstellar mission from the E arth to the 8.7 light-years distant star Sirius. Your spaceship can travel with 70% the spee d of light and has a cylindrical shape with a diameter of 6 m at the front surface and a le ngth of 25 m. You have to cross the interstel lar medium with an approximated density of 1 hydrogen atom/m3. (a) Calculate the time it takes your spaceshi p to reach Sirius. (b) Determine the mass of interstellar gas th at collides with your spaceship during the mi ssion.arrow_forward(a) Calculate the size of the quantum involved in the excitation of each of a molecular vibration of period10 fs. Express the results in units of joules and kilojoules per mole, respectively. (b) Calculate the minimum uncertainty in the speed of a ball of mass 500 g that is known to be within 1.0 um of a certain location on a bat.arrow_forward
- A beam of 7.7-MeV a particles scatters from a gold foil of thickness o 0.32 μm. (a) What fraction of the a particles scattered between 1.0° and 2.0⁰? (b) What is the ratio of a particles scattered through angles greater than 1.0° to the number scattered through angles greater than 5.0°? Greater than 90°?arrow_forwardhere R jl and nl is a function of x or k ??? i m confusd advance physics questionnarrow_forward(a) An excimer laser used for vision correction emits 193-nm UV. Calculate the photon energy in eV. (b) These photons are used to evaporate corneal tissue, which is very similar to water in its properties. Calculate the amount of energy needed per molecule of water to make the phase change from liquid to gas. That is, divide the heat of vaporization in kJ/kg by the number of water molecules in a kilogram. (c) Convert this to eV and compare to the photon energy. Discuss the implications.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Modern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage Learning
University Physics Volume 3PhysicsISBN:9781938168185Author:William Moebs, Jeff SannyPublisher:OpenStax
Modern Physics
Physics
ISBN:9781111794378
Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer
Publisher:Cengage Learning
University Physics Volume 3
Physics
ISBN:9781938168185
Author:William Moebs, Jeff Sanny
Publisher:OpenStax