Calculate the maximum frequency of an x-ray emission caused by electron travelling with 60000 eV of kinetic energy

Q: It requires a minimum of 216.4 kJ/mol to remove an electron from a potassium metal surface. If UV…

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Q: Which process in the diagram below shows phosphorescence? Singlet excited states Triplet excited…

A: Phophorescence is a emmision of light,this a spin forbidin process that is this is happening between…

Q: Atomic emission spectroscopy relies on emission of light by the analyte. An ICP plasma has a…

A: As per Boltzmann equation, the ratio of populations of two energy levels is given as: N2N1=eE1-E2kT

Q: Explain the principle of the absorption process?

A: To explain: The principle of the absorption process?

Q: Calculate the wavelength in hydrogen spectrum for the emission that results from the transition n =…

A: The wavelength in hydrogen spectrum can be expressed as follows-

Q: A local AM radio station broadcasts at an energy of 5.65×10-31 kJ/photon. Calculate the frequency at…

A: Since the relationship between energy and frequency is given by  E = hf  where E = energy in J =…

Q: Which of the following transitions between terms are allowed in the electronic emission spectrum of…

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Q: A rotating HI molecule may be treated as a stationary I atom around which an H atom circulates in a…

A: Moment of inertia (I) :  It is the multiplication of mass and square of radius . Th formula is…

Q: Calculate the minimum and maximum frequencies and energies of a photon capable of promoting an…

A: To determine: The minimum and maximum frequencies and energies of a photon capable of promoting an…

Q: Absorption of what type of electromagnetic radiation results in transitions among allowed…

A: Given question is Absorption of what type of electromagnetic radiation results in transitions among…

Q: Calculate the energy of the quantum involved in the excitation of (i) an electronic oscillation of…

A: Quantum energy involved in the excitation : i) An electron have oscillation period =2.50 fs.  Then…

Q: What is the wavelength in hydrogen spectrum for the emission that results from the transition n = 4…

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Q: Calculate the average kinetic energy of ejected electrons in units of kJ / mol when a light with a…

A: There is very small correction in the question that is work function is - 435 kJ/mole not the…

Q: What is the difference between an energy absorption and an energy emission with respect to atomic…

A: The differences between absorption and an emission spectrum are as follows: 1) The main difference…

Q: An electron in a hydrogen atom relaxes to a lower energy level, emitting light of 397 nm. What is…

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Q: What is the difference between the excitation and emission spectrum?

A: The peaks of emission spectrum are lower than excitation peak.

Q: A tunable dye laser emits pulses of light at 642.0 nm, each having a total energy of 9E-6 J.…

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Q: Estimate the lifetime (in picoseconds) of a quantum state that gives rise to a line of width 1.73…

A: Lifetime broadening relation is a reminiscent of the uncertainty principle. It shows that the…

Q: What are natural line widths for atomic emission and absorption lines? About how broad are these…

A: Spectral lines are lines which help in identifying the atoms and molecules. These are a result of…

Q: Calculate the wavelength, in m, of electromagnetic radiation having a frequency of 1070 kHz.

A: The wavelength of electromagnetic radiation is mathematically expressed as: Where: , and represent…

Q: Calculate the wavelength (nm) and energy (J) of the first line of the Hydrogen spectrum in the…

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Q: Calculate the energy change resulting from the emission of 1.00 mole of photons at this 470 nm…

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Q: Calculate the linear momentum of photons of wavelength (a) 600 nm. (b) 70 pm. (c) 200 m.

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Q: In 1859, Gustav Kirchhoff showed that the D line in the sun’s spectrum was due to the absorption of…

A: We have given that Wavelength (λ) = 589 nm = 589×10-9 m And we have asked 1) Frequency (ν) =  ? 2)…

Q: Which of the following transitions between terms are allowed in the electronic emission spectrum of…

A: i)For term symbol 3D2 the multiplicity is three. 2S+1=3Therefore, S=1 For term symbol,3P2 the…

Q: of ejected electrons as a function of the frequency of radiation hitting a metal surface. She…

A: Due to technical error ,unable to provide you the solution. Please resubmit the question once again

Q: Estimate the transmission coefficient for an electron tunneling through a barrier of height 2 eV and…

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Q: 421) The moment of inertia of an SF, molecule is 3.07 x 10 kg m. What is the minimum energy needed…

A: Given, the moment of inertia of an SF6 molecule = 3.07×10-45 kg m2 The minimum energy needed to…

Q: ) Is the kinetic energy of the photoelectron dependent on the X-ray beam energy?

A: Photoelectric effect :- The ejection of electron from the surface of a metal when a light of…

Q: Sodium atoms can be made to emit yellow light at a wavelength of 589.0 nm if they are heated…

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Q: A helium-neon laser emits light at 633 nm. What is the energy of a single photon from this laser?

A: 633 nm = 633 x 10-9 mh = 6.626 x 10-34Jsc = 3 x 108 m

Q: Calculate the wavelength of the photon needed to excite a transition between neighbouring energy…

A: Introduction The wavelength of photon is inversely related to the energy difference between the…

Q: A diode laser emits at a wavelength of 987 nm. (a) In what portionof the electromagnetic spectrum is…

A: a) To find in which part of the spectrum the radiation would be foundGiven wavelength=987x10-9mThe…

Q: The temperature of the Sun’s surface is approximately 5800 K. On the assumption that the human eye…

A: Electromagnetic spectrum involves different radiations from the lowest to the highest frequency…

Q: The energy required for the excitation from the 2nd to the 3rd excited levels in a particle moving…

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Q: The C-H bond in ethanol vibrates at a frequency of 3000 cm ¹. What frequency (s 1) of light is…

A: Light is required to change the vibrational quantum from v=0 to v=1,  that has same energy as the…

Q: How many photons are produced in a laser pulse of 0.360 J at 481 nm

A: Photon is a packet of energy which is emitted by an electron when an high energetic electron falls…

Q: The microwave spectrum of a diatomic molecule (reduced mass 1.66 x 10" kg) consists of a series of :…

A: Microwave Spectroscopy - The microwave spectrum usually ranges from 1GHz to 100GHz.  Reduced mass =…

Q: When light of sufficient high frequency is used to illuminate a typical metal surface, a…

A: The wavelength will be 72.7 nanometer.

Q: metal surface has a threshold energy of 225 kJ/mol. After being exposed to light with frequency 7.3…

A: We will first calculate incident radiation energy, then calculate kinetic energy. Atlast find…

Q: In a series of photoelectric emission experiments, metals with different work functions O were…

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Q: A local FM radio station broadcasts at an energy of 6.51×10-29 kJ/photon. Calculate the frequency at…

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Q: Calculate the wavelength of the photon needed to excite a transition between neighbouring energy…

A: The wavelength of harmonic oscillator is given by,

Q: Calculate the energy (in J) of one quantum radiation of (a) frequency 5 x 1014 Hz, (b) wavelength…

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Q: Which of the following transitions are allowed in the electronic emission spectrum of a hydrogenic…

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Quantum Chemistry

Quantum chemistry deals with the properties of chemical systems and their reactions. The branch of chemistry which is more concerned with quantum chemistry is physical chemistry. It is a more sophisticated field of theoretical physics which is concerned towards the application of physical concepts towards various chemical aspects such as, formation of atoms, chemical structure descriptions, chemical bond strength, hybridization, conjugation etc. Quantum chemistry mainly studies the various states i.e., ground state, excited state, transition states of the individual atoms or molecules taking place during any chemical reaction. The laws of motion explained by various scientists, which are termed as “classical mechanics” were not acceptable in terms of electrons, protons, atoms, light etc. Thus, a new theory named “quantum mechanics” emerged to understand the basic framework of various atomic and subatomic particles.