10. The internuclear distance of HF is 0.92 Å. The molecular mass of H is 1.00794m, and F is 18.998404mu. Determine the value of rotational energy of a H-F molecule described by 1=2. [Assume that F is stationary and the H is rotating around it.] Z

10. The internuclear distance of HF is 0.92 Å. The molecular mass of H is 1.00794m, and F is 18.998404mu. Determine the value of rotational energy of a H-F molecule described by 1=2. [Assume that F is stationary and the H is rotating around it.] Z

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

8. Electronic Spectroscopy. Vibrational spectroscopy refers to changes in vibrational energy levels. Electronic spectroscopy refers to the photon energy absorbed or emitted by a molecule from electron transitions between different possible electronic states. On the diagram below, Draw arrows to illustrate the processes, and Label with the letters shown in bold. a) Franck-Condon principle for electronic excitation (F-C), from vibrational ground state v = 0. b) Collisional Relaxation in the excited states without photon emission (CR) c) Return to the ground state via Fluorescence (F) d) Intersystem Crossing (ISC) e) Return to the ground state via Phosphorescence (P) f) Infra Red absorbance of one quantum of vibrational energy from v = 0 in the ground state (IR) Raman scattering that allows transition from v = 0 to v = 1, in the ground state (RAMAN) On the x-axis, indicate the bond lengths re and ro for the ground electronic state only. Draw an arrow to show the magnitude of the Zero…
The diatomic molecule NaCl has a reduced mass of 13.96 u and the atomic separation is 0.236 nm. The energy emitted in a transition from the rotational state with J=3 to another with J=2 in eV is: O A. 2.6x10-23 OB. 13.6 O C. 1.6x10-19 O D. 1.6x104 O E. 7.6x10
The CO molecule undergoes a rotational transition from the l=1 level to the l=2 level. Using the Table 1, calculate: a. the reduced mass of the molecule, b. the bond length of the molecule. Table 1. Microwave Absorption Lines for Several Rotational Transitions of the CO Molecule. Rotational Transition Wavelength of Absorbed Line (m) Frequency of Absorption Line (Hz) l = 0 -> l = 1 2.60·10-3 1.15·1011 l = 1 -> l = 2 1.30·10-3 2.30·1011 l = 2 -> l = 3 8.77·10-4 3.46·1011 l = 3 -> l = 4 6.50·10-4 4.61·1011
421) The moment of inertia of an SF, molecule is 3.07 x 10 kg m. What is the minimum energy needed to start it rotating?
You have a harmonic oscillator of mass 1.73 x 10-27 kg. There is an energy difference in adjacent energy levels that is measured to be 2.55 x 10-20 J. Calculate the force constant of the oscillator.
Consider an electron in the hydrogen atom. The electron is initially in the ground state.
P12.19 The following data were observed in an experiment on the photoelectric effect from potassium: 10¹⁹ Kinetic Energy (J) 4.49 3.09 1.89 1.34 0.700 0.311 Wavelength (nm) 250. 300. 350. 400. 450. 500. Graphically evaluate these data to obtain values for the work function and Planck's constant.
11. ( Draw the potential energy as a function of x. On top of the potential function, draw horizontal lines corresponding to the ground and first two excited quantum mechanical state energies of this system. Label the lines with their respective "v labels". Finally, using your energy state lines as individual axis, draw the wave functions for the ground and first two excited states. Consider the standard one-dimensional Harmonic oscillator centered about x = 0.
It is commonly the case that 2 energy states have the same energy. States at the same energy are known as degenerate. A given molecule has 2 degenerate states that are 700 cm-¹ (wavenumbers, 1/2) above the lowest energy state. Remember that E = h * v= h * C/ where c is the speed of light. a) Calculate the temperature at which this molecule has a 15% probability to be in either of the higher energy degenerate states. b) If you were able to observe this molecule for a 100 second time period, what would be the total amount of time you observe the molecule to be in the upper degenerate energy states and what would be the total amount of time you observe the molecule to be in the lower energy state? c) If there were 100 molecules present, on average about how many would be in the upper degenerate energy states and how many would be in the lower energy state?
Gg.131.
5. The energy of one electron in H-atom is 1.36 x10-19 J. Calculate the main electronic state. a.1b.7c.4d.2