An electron is confined to a one-dimensional box. Thewavelength of the radiation required to excite the electronfrom the lowest level to the first excited level is 1.10 1-1m .What is the length of the box?

Q: (a) What is the relationship between the wavelength and thefrequency of radiant energy?

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

Q: Assuming that the resolution of an electron microscope is equal to the de Broglie wavelength of the…

A: Speed of electron and wavelength are linked to each other as follows:

Q: What is the frequency of a photon resulting from the transition of n = 4 → n = 1 ? (give answer to 3…

A: Given transition is n=4 to =1.Using the Rydberg equation,

Q: The strongest emissions line for helium is at 420 nm. What is the formula for determining the…

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Q: 2. The Pfund series of lines in the hydrogen spectrum occurs at wavelengths of from 2.279 µm to…

A:

Q: In addition to (ontinuous radiation, fluorescent lamps emits some Vicible lines from mercury. A…

A:

Q: what is the wavelenght of an electron accelerated by 10000 volts ?

A: The de Broglie wavelength of an electron is accelerated through a potential difference of 10,000V is…

Q: A nitrogen laser generates a pulse containing 10.1 mJ of energy at a wavelength of 339.6 nm. How…

A:

Q: Calculate the energy, in kJ, for a mole of photons if 1024nm light

A: Energy of a photon is given by E = hc/λ where E = energy in J h = Planks constant = 6.626 X 10-34 Js…

Q: Write the steady-state symbol for the following atoms 11Na , 37Rb , 55Cs , 87Fr , 3Li

A: The ground state term symbol is generally represented as, 2S+1LJ Where, S is the total spin quantum…

Q: The laser pointer emits light because electrons in the material are excited (by a battery) from…

A: The energy difference between the two states is same as the energy of the photon released on return…

Q: A nitrogen laser puts out a pulse containing 27.0 m) of energy at a wavelength of 337.1 nm. How many…

A: Total Energy = (n × h × c)/√  √ = wavelength

Q: What is the speed (m/s) of an electron if it has a wavelength of 521 nm?

A: The kinetic energy of an electron is equal to energy of photon (light)Kinetic energy=12mv2=hcλWhere,…

Q: An electron in an atom is known to be in a state with magnetic quantum number m,=1. What is the…

A:

Q: (a) A laser emits light that has a frequency of 4.69 * 1014 s - 1.What is the energy of one photon…

A: Laser is also known as ‘light amplification by stimulated emission of radiation. ’It is a process in…

Q: Q1) Calculate the energy in eV required to excite an electron in a hydrogen atom from the n =1 to…

A:

Q: Calculate and compare the energy of a photon ofwavelength 3.3 mm with that of wavelength 0.154 nm.

A: Given: Wavelength = 3.3 mm Wavelength = 0.154 nm

Q: Physical Chemistry. Explain the origin of quantization of translational motion. Write an equation…

A: Life and other living beings need energy to function. The sun is the center of all life on Earth,…

Q: 5 Derive that the maximum energy Em of the bounce electron resulting from the Compton effect by the…

A: GIVEN:-   the maximum energy Em of the bounce electron resulting from the Compton effect by the…

Q: Calculate the freqwency of wavelength radiation with a of 495nm

A: Given that , Wavelength of radiation = 495 nm = 495 x 10-7 cm Speed of light = C = 3 x 1010 cm/sec

Q: A beam of photons is incident on the surface of a metal whose threshold frequency is vo. The energy…

A:

Q: Molybdenum metal must absorb radiation with a minimumfrequency of 1.09 x 1015 s -1 before it can…

A: The photoelectric effect is the effect of light on the metal surface. Since metals can easily lose…

Q: An electron is confined to a one-dimensional box. The wavelength of the radiation requi red to…

A: Given, An electron is confined to a one-dimensional box. The wavelength of the radiation required to…

Q: when a sodium atom is deexcited from the first excited state to the ground state, it emits 9 Photon…

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Q: The width of a spectral line of wavelength 300 nm is measured as 0.01 nm. What is the average time…

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Q: Which of the following sets of quantum numbers are valid (enter V) and which are invalid (enter I)…

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Q: How many moles of photons are in a pulse if the pulse has a wavelength of 600 nm and a total energy…

A:

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

A: Given data, Wavelength = 987 nm = 987 × 10-9 m time (t) = 32 s Total energy = 0.52 J (a) In what…

Q: One type of sunburn occurs on exposure to UV light ofwavelength in the vicinity of 325 nm. (a) What…

A: “Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: . An electron in a hydrogen atom relaxes to n = 2 and emits a frequency of 6.169 x 1014 s-1.…

A: Solution:       Electron absorb energy of particular wavelength and excited from lower energy  orbit…

Q: For a particle in a box of length L, write the expression for the energy levels, En, and then write…

A: Given information,    Length of box is L    The length of the box has increased to 1.1L (i.e. 10%)

Q: Determine: The frequency of light with a wavelength of 25nm. (1.2x1016 Hz)

A: The general expression required to determine the frequency is shown below,

Q: For an electromagnetic wave with a frequency of 1.2*1017 Hertz, what is it's wavelength in…

A: The frequency of the electromagnetic wave is = 1.2×1017 Hertz The wavelength of the radiation is =?

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: What is the energy of one mole of photons from a photon with a wavelenght of 327nm?

A:

Q: Photons are emitted in the Lyman series as hydrogenatoms undergo transitions from various excited…

A: Given: To determine the photons are emitted in the Lyman series as hydrogen atoms undergo…

Q: The speed of sound in dry air at 20 °C is 343 m/s and the lowestfrequency sound wave that the human…

A: Electromagnetic radiation is the energy that propagates through space in form of electromagnetic…

Q: What is the energy of a single photon of microwave radiation with a wavelength of 0.0618 meters?…

A: Given,Wavelength = 0.0618 m

Q: Determine the energy of a photon with a wavelength of 334nm.

A: Question of given a wavelength of photon   = 334nm We have determine the photon energy.

Q: What is the total energy associated with a pulse of 5.00 × 1017 photons if each photon possessed a…

A: The number of photons is = 5.00 × 1017 The frequency of the photon is = 4.79x1014 Hz

Q: Calculate the energy of a mole (einstein) of photons with wavelength 485.4 nm.

A: The energy relationship for photon is given below.

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

A:

Q: (a) What is the relationship between the wavelength and thefrequency of radiant energy? (b) Ozone in…

A: The given question can be solved on the basis of the prior knowledge of the basics of spectroscopy.

Q: Calculate the energy of a mole of photons corresponding to a wavelength of 300 nm.

A:

Q: An photon with wavelength 338 nm is emitted when an electron in a box transitions from the first…

A: To calculate the final energy state in the second transition the Rydberg equation is used, 1λ = RH…

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.