Platinum has a work function () of 6.35 eV. What is the longest wavelength of light, in nm, that will cause the ejection of electrons? (1 eV=1.6 x 10-19 J)

Q: Electron microscopes operate on the fact that electrons act as waves. A typical electron kinetic…

A: Applying de-Brogalie equation ∆E= hc/lemda     = 1242 /lemda  When energy is in the eV .

Q: Copper has a work function () of 4.70 eV. What is the longest wavelength of light, in nm, that will…

A: When a light of a suitable wavelength falls on the metal surface it causes the electron ejection…

Q: Iron has a work function (Φ) of 4.50 eV. What is the longest wavelength of light that will cause the…

A: The longest wavelength of light that will eject an electron from a iron surface is calculated as,

Q: Platinum has a work function (Φ) of 6.35 eV. What is the longest wavelength of light, in nm, that…

A: According to Einstein's theory for photoelectric effect- Elight=ϕ+Eel Where Elight , ϕ and Eel…

Q: In his explanation of the threshold frequency in the photoelectric effect, Einstein reasoned that…

A: Work function is the minimum energy required to cause a photoelectric effect on that metal (remove…

Q: A photon has a frequency of 8.19 × 10⁸ Hz. What is the energy of this photon in Joules? (h = 6.626 ×…

A: The expression of energy of photon is shown below: where; h = Planck's constant ν = Frequency

Q: The scattering of sunlight by the mixture of gas molecules in air results in the blue color of the…

A: Applying formula E = hv

Q: Consider light with a wavelength of 1.25 x 10¬10 m. The energy of a single photon of this type of…

A: Photon will transfer its energy to the water molecules, and continuous bombardment of photon will…

Q: When a metal was exposed to photons at a frequency of 1.19 × 10'5 s-', electrons were emitted with a…

A: You can find the work function of the metal which is the energy required to free the electron from…

Q: Light with a wavelength of 614.5 nm looks orange. What is the energy, in joules, per photon of this…

A: First, the energy in Joules is determined as follows,

Q: 14. What is the energy (in J) of a mole of photons that have a wavelength of 549 nm? (h = 6.626 ×…

A:

Q: A photon of light produced by a surgical laser has an energy of wavelength of 6.57 x 10-7 m.…

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

Q: In his explanation of the threshold frequency in the photoelectric field, Einstein reasoned that the…

A: Given that.,  Work function = 4.41 × 10-19 J And also work function = h × v  v = frequency = c/λ λ =…

Q: green light has a wavelength of 5.1 X 10^2 nm. What is the energy in joules of one photon of green…

A: The given value of wavelength (λ) of green light is: λ=5.1×102 nm=5.1×102×10-9 m  =5.1×10-7 m

Q: A hydrogen lamp emits blue-green light with a wavelength of 486.1 nm. This corresponds to the…

A: Energy of photon is related to wavelength as,                                                  We…

Q: (a) A local radio station broadcasts at a frequency of 99.6 MHz (99.6 × 10° Hz). What is the…

A: Since you have posted a question with multiple subparts, we can answer only first three subparts. To…

Q: Calculate the maximum wavelength, Amax, of electromagnetic radiation that could eject electrons from…

A: Given information: Work function = 6.50×10-19 J Maximum speed = 4.09×106 m/s

Q: A photon has a frequency of 8.41 × 10⁸ Hz. What is the energy of this photon in Joules? (h = 6.626 ×…

A:

Q: The electron microscope uses the wave property of electrons to observe very small objects. A moving…

A: Kinetic energy = h22λ2m where wavelength = λ  mass of electron = m Plank's constant = h

Q: A photon has a frequency of 8.39 × 10⁸ Hz. What is the energy of this photon in Joules? (h = 6.626 ×…

A:

Q: 1a) What is the wavelength of a photon of light (in nm) whose frequency is 3.74 x 10^14 Hz?…

A:

Q: UV Photon. What is the energy (in joules) of an ultraviolet photon with wavelength 120 nm? What is…

A: Given values are, wavelength = 120 nm=1.2×10^-7 m c = 3.00 x 108 m/s h = 6.674 × 10−11 m3/(kg s2)=…

Q: Consider light with a wavelength of 5.41 × 10⁻¹⁰ m. The energy of a single photon of this type of…

A: Given, Energy of a single photon = 3.67 × 10-16 J Total energy taken to heat a cup of water = 7.44 ×…

Q: Microwave ovens use microwave radiation to heat food. The energy of the microves is absorbed by…

A: 1.To calculate the energy of a photon with a wavelength of 11.2cm, use the Energy relation:

Q: A hydrogen lamp emits blue-green light with a wavelength of 486.1 nm. This corresponds to the…

A: 8.1x1018 will be correct option

Q: Platinum has a work function of 6.35 eV. What is the longest wavelength of light that will cause the…

A: Work function is the minimum energy required to cause the ejection of electrons from the metal…

Q: The scattering of sunlight by the mixture of gas molecules in air results in the blue color of the…

A: Given  Frequency = 6.20 × 1014 Hz  Hz is also written as second-1 Frequency = 6.20 × 1014 sec-1…

Q: The work function for a metal is 208.4 kJ/mol. If a beam of visible light with wavelength equal to…

A: Given values:- Work function of metal = 208.4 KJ/mol Wavelength of beam of light = 550 nm Mass of…

Q: The scattering of sunlight by the mixture of gas molecules in air results in the blue color of the…

A: Given ,  Frequency of the photon  = 6.50 × 10^14 Hz Plancks constant (h) = 6.626×10^-34  J. S

Q: A photon of light with a wavelength of 200.0 nm strikes a metal surface and an electron is ejected…

A:

Q: A photon has a frequency of 8.01 × 10⁸ Hz. What is the energy of this photon in Joules? (h = 6.626 ×…

A: Photon energy is the energy carried by a single photon. The amount of energy is directly…

Q: When a metal was exposed to photons at a frequency of 1.31 × 105 s-', electrons were emitted with a…

A:

Q: ectrons:

A:

Q: The energy of the electron in the lowest level of the hydrogen atom (n=1) is -2.179×10-18 J. What is…

A:

Q: Copper has a work function (Φ) of 4.70 eV. What is the longest wavelength of light, in nm, that will…

A:

Q: When a metal was exposed to photons at a frequency of 1.47 x 105 s-1, electrons were emitted with a…

A:

Q: The scattering of sunlight by the mixture of gas molecules in air results in the blue color of the…

A:

Q: The scattering of sunlight by the mixture of gas molecules in air results in the blue color of the…

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.