(a)
Interpretation:
The individual lines detected for
Concept introduction:
The shifting and splitting of spectra lines of atoms and molecules when the molecule is subjected under external electric field is known as Stark-effect. The emission and absorption lines are observed in Stark-effect.
(b)
Interpretation:
The individual lines detected for
Concept introduction:
The shifting and splitting of spectra lines of atoms and molecules when the molecule is subjected under external electric field is known as Stark-effect. The emission and absorption lines are observed in Stark-effect.
(c)
Interpretation:
The individual lines detected for
Concept introduction:
The shifting and splitting of spectra lines of atoms and molecules when the molecule is subjected under external electric field is known as Stark-effect. The emission and absorption lines are observed in Stark-effect.
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Physical Chemistry
- 3 The rotation motion of HCl molecules can be analyzed by treating each molecule as a rigid rotational constant B= 2.07x10^-22 Joules. a) what frequency of radiation will excite the transition from the J=1 energy level to the J=2 level in this case? b) what is the relative probability of observing an HCl molecule at the J=2 energy level, as compared to teh J=1 level, at 25.00 degrees C?arrow_forwardThe moment of inertia of an SF6 molecule is 3.07 × 10−45 kg m2. What is the minimum energy needed to start it rotating?arrow_forwardAssume that the states of the π electrons of a conjugated molecule can be approximated by the wavefunctions of a particle in a one-dimensional box, and that the magnitude of the dipole moment can be related to the displacement along this length by μ = −ex. Show that the transition probability for the transition n = 1 → n = 2 is non-zero, whereas that for n = 1 → n = 3 is zero. Hints: The following relation will be useful: sin x sin y = 1/2cos(x − y) − 1/2cos(x + y). Relevant integrals are given in the Resource section.arrow_forward
- Calculate the value of ml for a proton constrained to rotate in a circle of radius 100 pm around a fixed point given that the rotational energy is equal to the classical average energy at 25 degrees C.arrow_forwardThe following parameters describe the electronic ground state and an excited electronic state of SnO: ᷉ B = 0.3540 cm−1, ᷉ B' = 0.3101 cm−1. Which branch of the transition between them shows a head? At what value of J will it occur?arrow_forwardQ/ The bond length of the C0O molecule is 112.8 pm. Calculate the following (a) The reduced mass. (b) The rotational constant of CO when moment of inertia (I) is 1.4486 x 1046 kg.m² (c) Calculate the wavelength of the photon absorbed when a CO molecule initially in the J=2 level. makes a transition to the J=3 level.arrow_forward
- (a) Express the moment of inertia of an octahedral AB6 molecule in terms of its bond lengths and the masses of the B atoms. (b) Calculate the rotational constant of 32S19F6 , for which the S—F bond length is 158 pm.arrow_forwardCalculate the value of ml for a proton constrained to rotate in a circle of radius 100 pm around a fixed point given that the rotational energy is equal to the classical average energy at 25 degrees C. (Mass of a proton = 1.6726 x 10^-27 kg, classical average energy=1/2kBT, where kBT is Boltzman constant = 1.30 x 10^ -23 J K^-1, and T is the temperature.)arrow_forwardcan someone please help with this question? Q. Calculate the separation between the two lowest energy levels for an N2 molecule in a one- dimensional container of length 2.0 cm. At what value of n does the energy of the molecule reach ½kT at 300 K, and what is the separation of this level from the one immediately below?arrow_forward
- Normalize (to 1) the wavefunction e–ax in the range 0 ≤ x ≤ ∞, with a > 0.arrow_forward3. ^14N^16O (the superscripts represent the atomic mass number) (a) NO molecules rotate at an angular velocity of 2.01x10^12 rev/s, at the quantized rotational state with the rotational quantum number J of 3. Calculate the bond length of NO molecules. (b) Can NO molecules rotate under light irradiation? Explain your answer. (c) Calculate the effective force constant of the vibrational mode of NO at a frequency of 5.63x10^13 Hz measured by the infrared absorption spectrum. (d) NO has a bond energy of 6.29 eV. Applying the parabolic approximation to estimate the longest distance in which N and O atoms can be stretched before the dissociation of the molecular bondarrow_forwardWe have a HCl molecule, with H and Cl have atomic mass of 1.0 and 35.5 amu, respectively. The force constant is 480 N/m for this H-Cl bond, what is the photon frequency when the HCl molecule decay from its second excited vibrational state to its ground vibrational state?arrow_forward
- Physical ChemistryChemistryISBN:9781133958437Author:Ball, David W. (david Warren), BAER, TomasPublisher:Wadsworth Cengage Learning,