Sort:Consider 1.50 mols of a substance in thermal equilibrium at a temperatureof 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 1.60x1019 J. kB = 1.38x10 23 J/K ,NA = 6.02x1023 mol!%3DEg -a) Find the probability of occupation of the ground statewith energy E1 and the 1st excited state with energy E2?b) How many atoms in the substance (on average) are in5.00x102 eVthe ground state and in the 1st excited state?E回向

Given that number of moles of a substance and temperature and also given the value of one electron…

Consider 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 5.00x10 eV, where 1 eV (electron volt) is an energy unit equal to 1.60x10 19 J. kg = 1.38x10 23 J/K , NA = 6.02x1023 mol %3D a) Find the probability of occupation of the ground state with energy E, 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 ? E

Consider 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 5.00x10 eV, where 1 eV (electron volt) is an energy unit equal to 1.60x10 19 J. kg = 1.38x10 23 J/K , NA = 6.02x1023 mol %3D a) Find the probability of occupation of the ground state with energy E, 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 ? E

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

None
6
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
Suppose that all the vibrational branches of a one-dimensional crystal consisting of two different masses with equal spacing, a=3.0 can be represented by a single optical mode branch and a single acoustical mode branch. If the frequency of the long-wavelength optical waves is 2x1013 rad/s and the maximum frequency of acoustical waves is 1013 rad/s, what is the group velocity of long wavelength acoustical waves?
3. The classical partition function of a gas of noninteracting indistinguishable particles is written as exp{- N! 2m Z= where N is the number of particles of mass m, r, and p, are the position and the momentum of the ith particle, B = 1/(kpT), and Tis the temperature of the gas. The volume of the gas is V. (a) Find the analytic expression of the partition function of the gas. (b) Obtain the total mean energy E of the gas from the partition function. (c) Obtain the entropy S of the gas from the partition function and the total mean energy. Lexp(-x³xdx = Va Hint:
For an ideal gas O2 at T = 293 K fi nd the two speeds v that satisfy the equation 2F(v) = F(v*). Which of the two speeds you found is closer to v*? Does this make sense?
A gas of identical diatomic molecules absorbs electromagnetic radiation over a wide range of frequencies. Molecule 1, initially in the υ = 0 vibrational state, makes a transition to the υ = 1 state. Molecule 2, initially in the υ = 2 state, makes a transition to the υ = 3 state. What is the ratio of the frequency of the photon that excited molecule 2 to that of the photon that excited molecule 1? (a) 1 (b) 2 (c) 3 (d) 4 (e) impossible to determine
We have a piece of Si (shown below) with dimensions 50 um x 200 um x 0.25 um. The Silicon is doped uniformly with ND = 1014 cm3. What is the resistance of the slab when measured along the length (200 um)? %3| If a light with photonic energy greater than the bandgap of Si were to be shone from the top surface such that it produces uniform hole-electron pairs Ap =An = 5E12 cm-3 throughout the slab, what would be the ratio of the illuminated conductivity vs the dark conductivity? What is the ratio of conductivity due to holes vs the conductivity due to electrons under illumination? How about in the dark? 200 Nm
4c sin M ka The dispersion relation of phonons in a monatomic, linear chain of atoms is given by: w(k) = . Compare the maximum phonon frequency at the edge of the Brillouin zone with the Debye frequency of the chain. What is the difference between the real phonon density of states lat the edge of the Brillouin zone and the state density in the De- bye model? Calculate all four values (@max, OD, D(@max), D(@p) for a speed of sound of v; = 400 m/s and 50 atoms in the chain (a = 3Å). Describe the zone boundary with 0.99 T/a.
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?
Plz solve in 30 min I vill definitely upvote and positive rating
The probability of finding an N2 molecule at ambient temperature at 515 m/s is zero. True or False?