The binding energy of a potassium chloride molecule (KC1) is 4.43 eV. The ionization energy of a potassium atom is 4.3 eV, and the
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- The v = 0 to v = 1 vibrational transition of the HI molecule occurs at a frequency of 6.69 × 1013 Hz. The same transition for the NO molecule occurs at a frequency of 5.63 × 1013 Hz. Calculate (a) the effective force constant and (b) the amplitude of vibration for each molecule. (c) Explain why the force constant of the NO molecule is so much larger than that of the HI molecule.arrow_forwardIn solid KCI the smallest distance between the centers of a. potassium ion and a chloride ion is 314 pm. Calculate the length of the edge of the unit cell and the density of KCI, assuming it has the same structure as sodium chloride.arrow_forwardThe molecular binding energy is called the dissociation energy. It is the energy required to separate the atoms in a molecule. The dissociation energy of the NaCl molecule is 4.24 eV. Determine the fractional mass increase of the Na and Cl atoms when they are not bound together in NaCl. What is the mass increase for a mole of NaCl?arrow_forward
- M Inbox (44,3 x w Virginia Cor X Frcc Chapter 4 H x Visual session.masteringphysics.com/myct/itemView?assig Apps Getting Started Thomson Reuters o ADP ezLaborManag Ch 07 HW Exercise 7.35 - Enhanced - with Feedback The potential energy of two atoms in a diatomic molecule is approximated by U (r) = a/r-b/r°, where r is the spacing between atoms and a and b are positive constants.arrow_forwardPls help ASAP. Pls show all work annd circle the final answer.arrow_forwardA:08 الرسائل المحفو. . . 1 03: Rhenium has a Hexagonal Close-Packed crystal structure with an atomic radius of 0.137 nm and a ratio c/a of 1.615, compute: a) The volume of the unit cell. b) The theoretical density c) Atomic packing factor Note: Avogadro's' number = 6.023×10²³ Atomic weight = 186.21 g/mol إضافة وصف.. . IIIarrow_forward
- A + Given that B 7-10- == 13) Suppose that the interaction energy between two atoms is given by E (r) the atoms from a stable molecule with an internuclear distance of 0.3 nm and a dissociation energy of 4 eV, calculate A and B. Also calculate the force require to break the molecule and the critical distance between the nuclei for which this occurs.arrow_forwardThe interaction between an atom and a diatomic molecule is described by a ‘repulsive’ potential energy surface. What distribution of vibrational and translational energies among the reactants is most likely to lead to a successful reaction? Describe the distribution of vibrational and translational energies among the products for these most successful reactions.arrow_forwardHowever, the molecule we can encounter everyday continuously vibrates and interact with the surrounding causing its bond vector to vary slightly. According to a new spectroscopy analysis, the adjacent bond vectors was found to be A = 1.01i + 0.84j + 0.9k B = 0.99i + -0.92j + -1.04k What is the angle (in degrees) between the bonds based on this new data?arrow_forward
- The density of silver is 9.5 g/cm3, the gas constant of 8.62 x10 eV/atom-K, the temperature of 500 °C, the number of atoms of 5.26x1028 m3 and the number of vacancies of 3.58x1023 m3. Calculate the activation energy for vacancy formation in silver. O a. 0.88 eV/atom O b. 0.79 eV/atom O c. 0.97 eV/atom O d. 0.89 eV/atomarrow_forwardThe bond strength of an H2 molecule is 436 kJ/mol. Using the Lennard-Jones potential: the distance at which V=0 is 2.93 Å. a. Calculate the equilibrium bond distance for H2. b. Calculate the maximum adhesion force between the two H atoms.arrow_forwardc) Let's think about this. To a first approximation, a diatomic molecule can be represented by a harmonic oscillator. However, we learned that the Morse oscillator provides a better representation of a diatomic molecule. The figure below shows the harmonic and Morse potential energy curves for a diatomic molecule, along with corresponding vibrational wavefunctions. How do you expect the average bond length of a diatomic molecule would change if the molecule transitions from the ground to any of the excited vibrational levels when: 1) the molecule is represented by the harmonic potential, and 2) the molecule is represented by the Morse potential? Explain your reasoning. Harmonic potential Morse potential Vs V4 Vs V1 Vo vo Reg Regarrow_forward
- Modern PhysicsPhysicsISBN:9781111794378Author:Raymond A. Serway, Clement J. Moses, Curt A. MoyerPublisher:Cengage LearningPhysics for Scientists and Engineers with Modern ...PhysicsISBN:9781337553292Author:Raymond A. Serway, John W. JewettPublisher:Cengage Learning