Calculate the kinetic energy of an electron ejected from the surface of a sample of Barium when the metal is subjected to photons having a wavelength of 325 nm.

Q: Calculate the energy (in joules) of a photon with a wavelength of 5.00 × 10° nm

A: Answer Energy of a photon = 3.9756*10-20 J

Q: The work function of cesium correlates to the light of wavelength lambda = 650nm. What is the…

A: The given data is shown below

Q: Calculate the energy of a photon of radiation whose wavelength is 413 nm.

A: wavelength of photon = 413 nm = 413*10-9 m

Q: Write and define the wavelength distribution of black body radiation and Planck's law. Draw the…

A: Electromagnetic radiations are emitted by all the objects when they are present at the temperature…

Q: Excited mercury atoms emit light strongly at a wavelength of 428 nm. a. Calculate the energy of a…

A: Energy is given by the equation:

Q: Calculate the Energy (in Joules) of a photon emitted by a hydrogen atom when its electron drops from…

A: Initial energy level of electron (ninitial) = 5 The final energy level of electron (nfinal) = 2…

Q: Calculate the energy in joules of a photon of electromagnetic radiation whose frequency is 2.93x1014…

A: Given : Frequency of photon = 2.93 X 1014 s-1

Q: A) Calculate the maximum wavelength,λmax, of electromagnetic radiation that could eject electrons…

A: Q-A) Calculate the maximum wavelength,λmax, of electromagnetic radiation that could eject electrons…

Q: If an electron in hydrogen is excited to energy level 7 and drops back to energy level 3, would you…

A: Question based on hydrogen spectrum

Q: What is the difference in energy between the two levels responsible for the ultraviolet emission…

A: Given, wavelength for the ultraviolet emission line of the magnesium atom = 285.2 nm we are asked to…

Q: The energy of a mole of photons of red light from a laser is 175 kJ/mol. Calculate the energy of one…

A:

Q: When a metal is irradiated with light an electron is ejected with a speed of 1.01 x 106 m/s. If the…

A: Given data: Speed = 1.01 x 106 m/s Work function = 6.88 x 10-19 J

Q: Part A The energy required to dislodge electrons from rubidium metal via the photoelectric effect is…

A: We are given with the Energy required,  E = hc/λ = 218 kJ/mol = 218 × 1000 J/mol Where c is velocity…

Q: What is the longest wavelength of electromagnetic radiation capable of ionizing this hydrogen atom…

A: Here, we must calculate longest wavelength of electromagnetic radiation capable of ionizing this…

Q: Calculate the wavelength of a photon that is ejected from hydrogen atom when the electron travels…

A: Wavenumber of the photon emitted can be determined using Rydberg equation as follows,

Q: At what speed must an electron travel to have a wavelength of 0.100Å?

A: By help of De - broglie equation, we can calculate the speed of electron. The formula is - ^ = h/mv…

Q: What is the energy of a mole of X-ray photons that has a wavelength of 6.17 x 10-7 m?

A:

Q: If an atom of neon-20 were moving at its root mean square velocity at 255°C, what would the de…

A: Root mean square velocity=3RTMGwhere ,         R=Universal gas constant         T=Temperature in…

Q: What is the energy in J of a photon of blue light having a wavelength of 424 nm?

A: The conversion for nm to m is shown below.\

Q: What is the energy (in J) of a mole of photons that have a wavelength of 481 nm?

A: All the calculation required to calculate energy of a mole of photons having wavelength 481nm are…

Q: An x-ray has a wavelength of 1.3 Å. Calculate the energy (inJ) of one photon of this radiation.

A:

Q: What is the relation between kinetic energy and frequency of the photoelectrons?

A: The photoelectric effect is a state in which electrons are expelled by the surface of metal on the…

Q: Radiation of a certain wavelength causes electrons with a maximum kinetic energy of 0.68 eV to be…

A: Let Φ be the work function, the minimum energy required to remove an electron the metal

Q: four quantum numbers

A: Ans. The main/principal quantum number (n), the orbital angular momentum quantum number (l), the…

Q: If a mole photons of light has 2.39 J mol^-1 energy, what is its wavelength and description?

A: Given that : Energy of the photon = 2.39 J/mol Thus, for 1 mole, Energy=2.39 Jmol×1 mol=2.39 J

Q: basic principle of absorption of radiation in the visible region

A: Answer - Absorption of radiation -  Absorption of electromagnetic radiation is how matter…

Q: If hydrogen atoms are excited to the n = 4 state, what is the maximum number of emission lines…

A: 1. No.of lines when an electron jumps from nth level to ground state = n(n-1)/2  2. wave length of…

Q: Determine the wavelength that hydrogen atoms absorb to reach n=8 and n=9 states from the ground…

A:

Q: When ultraviolet rad iation of wavelength 58.4 nm from a helium lamp is directed on to a sample of…

A: Energy emitted formula is, E=hcλ Where, n = number of photons emitted, h=Planks constant=6.625×10-34…

Q: Calculate the number of photons of light with a wavelength of 3000 pm that provide 2 J of energy.

A: It is required to calculate the total number of photons having a total energy of 2 J. Energy of one…

Q: An excited ion emits radiation at a wavelength of 431.9 nm in the visible range of the spectrum.…

A: The relation between wavelength, frequency and speed of light can be expressed as follows-

Q: Determine the energy of a photon with a wavelength of 324 nm.

A:

Q: What is the energy (in joules) of a photon of green light having a wavelength of 440 nm?

A:

Q: Calculate the energy in joules of one photon of radiation with the wavelength of 5.00 μm.

A:

Q: The work function of metal is the minimum energy required to produce photoelectric effect on that…

A: Work function for Potassium (K) = 2.30 eV a) The minimum energy required to eject an electron from…

Q: A photon of light produced by a surgical laser has an energy of 3.027 × 10−19 J. Calculate the…

A: Given that,

Q: The work function of metal is the minimum energy required to produce photoelectric effect on that…

A:

Q: Why is it significant that colour emitted from the hydrogen emission spectrum is not white

A: Hydrogen emission spectra are produced by passing electricity in a glass tube containing hydrogen…

Q: What is the energy in joules for a photon with a wavelength of 620. nm?

A: Ans given as follows

Q: Calculate the energy of one photon of yellow light that has a wavelength of 589 nm?

A: The energy of a photon can be calculated by using the formula.

Q: Determine the energy of a photon with wavelength 786 nm.

A: Interpretation- energy of photon. Concept introduction – Photons are electrically neutral Photons…

Q: What is the energy in kJ of a mole of photons with a wavelength of 440 nm?

A: According to data given in the question,Wavelength of photon = 440 nmIt is known that, 1 nm = 10-9…

Q: What is the energy of a mole of photons that have a wavelength of 745 nm?

A:

Q: Calculate the frequency in (s-1) of the orange light emitted by a neon lamp with a wavelength of 675…

A: Applying formula C= lemda× frequency

Q: What is the energy of a mole of photons that have a wavelength of 755 nm?

A: Given that: wavelength = 755 nm = 755 x10−9 m To find, the energy of a mole of photons that have a…

Q: Determine the wavelength and frequency for light with energy of 255.6 kJ/mol. nm V =

A:

Q: What velocity must an electron have in order to have a de Broglie wavelength of 1.00 Å? What…

A:

Q: Microwave ovens emit microwave energy with a wavelength of 12.4 cm. What is the energy of exactly…

A:

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.