Why is emission wavelength longer than absorption wavelength?  Please answer shorty(to the point) at your own words.

Q: What is the Broglie wavelength (m) of a 25 g object mopving at a speed of 5.0 m/s? a) 1.9x1032 b)…

A: Given-> Weight = 25 gm = 0.025 kg (1 kg = 1000 gm) Speed = 5.0 m/s

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: Light is wave with both electric and magenitic components. O True O False

A: Statement given = light is wave with both electric and magnetic components True / False = To be…

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

A:

Q: Calculate the energy, in kJ/mol, of light with wavelength 153.25 nm. Type your final answer below…

A:

Q: a laser pulse at 546 nm contains 4.25 mJ of energy. how many photons are in the laser pulse? use 3…

A: The question is based on the concept of atomic structure. we have to calculate number of photons…

Q: An excited H atom with the electron in energy level 6 emits a photon of wavelength  2626 nm.   What…

A: Step:1   De-excitation  of electron:-   1λ=R1nf2-1ni2where λ=wavelength            R=1.097×107 m-1…

Q: Light of wavelength 4000 Å is incident on a sodium surface for which the threshold wavelength of…

A: Consider the given information is as follows; Work function  (ϕ) = ? Planck's constant (h) =…

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

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

Q: Please could you help me answer the maximum wavelength: _________nm.

A: Wavelength is the distance over which the shape of the wave repeats.

Q: An excited electron in an Na atom emits radiation at a wavelength 589 nm and returns to the ground…

A: In measuring any variable or parameter, some amount of uncertainty exists in the value. This is…

Q: An AM radio station broadcasts at 1010 kHz, and its FMpartner broadcasts at 98.3 MHz. Calculate and…

A: Formula to calculate Energy of a photon is-  E=hf where,  E= energy h= planck's constant=…

Q: (a) What is his de Broglie wavelength (in meters)? (b) What is the uncertainty in his position?

A:

Q: Perform the following conversion. Show work and units.  4.5 x 10^-15 J/photon to kJ/mole photons

A: Using conversion factors, we will convert J to KJ, then per photon to per mole photons

Q: The frequency in the problem is expressed as 101.1 MHz. Recall that in order to solve for the…

A: Since we know that  1MHz = 106 Hz  And the unit of frequency is Hz ke s-1

Q: An excited state electron in He+ first emits a photon with wavelength 25.629 nm when it relaxes to…

A:

Q: A) Why the emission and light scattering phenomenon are different?

A: Jdd

Q: arrange these three colors of visible light green,red,and blue in order to increase wavelenght

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

Q: An excited electron in an Na atom emits radiation at a wavelength 589 nm and returns to the ground…

A: inherent width in the emission line 9.20 fm

Q: . Om of the emission spectral lines for Be'" has a wavelength of 253.4 nm for an electronic…

A: The formula used to determine the energy from wavelength and from two principal quantum numbers is…

Q: How does electron diffraction demonstrate the complementarity of the wave nature and particle nature…

A: The properties which eliminate each other are referred as complementary properties

Q: Create a fluorometer schematic diagram and in a spectrofluorimetric analysis, why is it required to…

A: Fluorescence describes a phenomenon where light is emitted by an atom or molecule that has absorbed…

Q: The photoelectric work function for chromium metal is 422 kilojoules per mole of electrons ejected…

A: The relationship between the longest wavelength of radiation which can cause the photoelectric…

Q: For principle quantum number (n) 5, list all the possible values of the angular quantum number (l),…

A: The 4 quantum numbers are  1) Principal quantum number (n) = shell number or orbit number  2)…

Q: For waves traveling at the same velocity, the longer the wavelength, the smaller the frequency true…

A: Given statement,        The longer the wavelength, the smaller the frequency

Q: Rearrange the Rydberg equation algebraically to make new expression for n2 in terms of n1 and…

A: Rydberg equation is given.

Q: A wave that requires a medium in order to travel is an Transverse Wave. O True O False

A: Following is the definition of Transverse wave and so the correct answer as follows.

Q: Is kinetic energy of photoelectron dependent on the xray beam energy?

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

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: Is it correct that all photons of the same frequency have the same energy?

A: Yes, all photons having same frequency would have same energy.The energy of photons is different…

Q: Determine the de Broglie wavelength (in m) of a proton traveling at half the speed of light. (…

A: Given : speed of proton = 0.5 X speed of light  Since speed of light = 3.0 X 108 m/s Hence speed of…

Q: Q:- Calculate the wave number and frequency the first ine of the 1yman series

A:

Q: For scanning, the wavelength range is selected from 400 nm to 200 nm with medium scanning speed…

A: If the excitation is decided at 330 nm, then the wavelength range should start from 330+10 = 340 nm…

Q: Why is emission wavelength longer than absorption wavelength?

A: Why is emission wavelength longer than absorption wavelength?

Q: The line of longest wavelength in visible light for the emission spectrum of hydrogen, 656nm (Balmer…

A: Applying concept of hydrogen spectrum. 1/lemda = RH (1/n21- 1/n22)

Q: calculate the shorter wave number for pfund series

A: Wavenumber is defined as the number of waves per unit length. It is reciprocal to the wavelength and…

Q: (1) Why don't we observe the transition from nz > n for the hydrogen atom in the line spectrum? Be…

A: Here, I was answered first two questions.

Q: What is the frequency observed with a wavelengh of (4.0x10^-7) m? Answer with 2 significant figures…

A:

Q: In general, how do IR radiations compare in energetic magnitude with those of UV, X-rays and…

A:

Q: pelectric effect? Why does the photoelectric effect exhibit a hold frequency but not a time lag?

A: Atom consists of three basic elements are protons, electrons, and neutrons.

Q: Use Einstein's photoelectric equation to explain the laws of photoelectric effect. Electrons are…

A: The photoelectric effect is a phenomenon in which electrically charged particles are related to a…

Q: Calculate the photon energy (in kJ/mol) for the single Li emission and the two Na emission…

A: Introduction :  Photon energy can be defined as the unit excitation of the electromagnetic field,…

Q: An electron in a hydrogen atom falling from an excited state n=7 to a relaxed state has the same…

A: The question is based on the concept of atomic structure. we have to calculate the final energy…

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

A: The energy relationship for photon is given below.

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.