The energy density of starlight in interstellar space is 10–15 J/m3. If the average wavelength of starlight is 500 nm, what is the corresponding density of photons per cubic meter of space? (photons/m3)

Q: The wavelength of a particular color of blue light is 461 nm. The energy of this wavelength of…

A: Given; (Note: 109 nm = 1 m) The wavelength of a blue colour light = 461 nm = 461 × 10-9 m The energy…

Q: When a metal was exposed to photons at a frequency of 1.11 × 1015 s-1, electrons were emitted with a…

A: Given frequency = 1.11×10¹⁵ s-¹  Kinetic energy = 3×10-¹⁹ J  We have to find work function

Q: 27) The energy of a photon of light that has a frequency of 1.82x1016 s¬l is A) 1.21 × 1017 j B)…

A: Given;

Q: The blue color in fireworks is often achieved by heating copper (1) chloride, CuCl, to about 1200°…

A:

Q: The energy of a photon emitted when an electron underwent a transition to n = 3 energy level was…

A: The Rydberg equation is given below.

Q: A certain shade of blue has a frequency of 7.12×1014 Hz. What is the energy of exactly one photon of…

A: Given: Frequency (v) of light = 7.12×1014 Hz Planck's constant (ℎ) = 6.626×10−34 J⋅s

Q: A sample of copper is bombarded with high energy electrons, which leads to the emission of X-rays.…

A:

Q: X-rays have a wavelength small enough to image individual atoms, but are challenging to detect…

A: X-ray have a wavelength small enough to image individual atom but are challenging to detect because…

Q: Find energy in kJ of a photon. 2= 488 nm. The speed of light is 3.00 × 10° m/s and h = 6.63 × 10¬34…

A: given :-  wavelength = 488 nm  speed of light = 3.00 × 108 m/s  h = 6.63 × 10-34 J.s  To calculate…

Q: A photon has a frequency of 8.95 × 10° Hz. What is the energy of this photon in Joules? (h = 6.626 ×…

A:

Q: At noon on a clear day, sunlight reaches the earth's surface at Madison, Wisconsin, with an average…

A:

Q: What is the energy output of a light source in J/s (joules per second) if it produces 666 photons…

A: The energy associated with "n" photons is given by  E = nhcλE = Energy n = number of photonsh =…

Q: The binding energy of electrons in a metal is 294 kJ/mol. If 8.92 x 1024 photons of light with a…

A: Binding energy is the amount of minimum energy required to eject electrons from the metal surface.…

Q: An object was radiating light at a frequency of 2.947 x 1014 Hz. The total energy emitted per second…

A: The expression for the energy of photon is shown below: E = nhν where; E = energy of photon n =…

Q: When copper is bombarded with high-energy electrons, X-rays are emitted. Calculate the energy (in…

A:

Q: One of the radiographic devices in a dentist office emits an X-ray of wavelength 2.09 x 10-11 m.…

A: Frequency of light (v) = Speed of light / Wavelength                                   = 3 x 108 m…

Q: Of the following types of electromagnetic radiation radio waves, microwaves, gamma rays, and…

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

Q: a) An electron in the H atom moves from an unknown energy level to n = 2. The energy released in…

A: QUESTION 3 a) part given: Hydrogen aatom moves from an unknown energy level to n=2 Energy released…

Q: A laser in a DVD player emits about 5.0 mJ per second. If this is a "red" light, how many photons…

A: Given: Energy emitted by photon = 5.0 mJ/sec = 5.0×10-3 Js-1 Wavelength of Red light is in between…

Q: An electron begins at energy level n = 8.  If a photon is released such that the magnitude of the…

A:

Q: A stellar object is emitting radiation at 1970 nm. A detector is capturing 9x107 photons per second…

A: given: h = 6.63 x 10-34 J-s. c = 2.998 x 108 m/s. wavelength,  λ =1970 nm…

Q: A certain shade of blue has a frequency of 7.32×10^14 Hz. What is the energy of exactly one photon…

A: given :-  frequency (v) = 7.32 × 1014 Hz  h = 6.626 × 10-34 J.s  To calculate :-  energy of one…

Q: 2) A sample of atomic H gas, initially in the ground state, sequentially absorbs two photons at 1874…

A: The atomic hydrogen absorbs 1874 nm wavelength radiation. Let's say that the e- will transit from…

Q: A certain microwave oven produce microwave with x wavelength at 2.50 mm, if 20.0 moles of photons…

A: Given :- no.of moles of photons = 20.0 mol  Wavelength of microwave = 2.50 mm  To calculate :-…

Q: The energy of a photon of light is 3.46 × 10–17 J.  The wavelength of this light is (report

A: Given energy of a photon of light is 3.46 × 10-¹⁷ J.  We have to find wavelength

Q: 1. The laser in a CD player uses light at a wavelength of 7.80x102nm. Calculate the frequency and…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: [°C] = ([°F] - 32) + 1.8 Celsius: To Fahrenheit [°F] = ([°C] × 1.8) + 32 To Kelvin [K] = [°C] +…

A:

Q: Calculate the difference in energy (in joules) between a photon with λ= 687 nm and a photon with λ=…

A:

Q: The wavelength of a particular color of red light is 699 nm. The energy of this wavelength of light…

A: We have to calculate the energy of light of given wavelength.

Q: The frequency of microwave radiation is approximately 6.00x 107 s1. How many photons of this…

A: The no of photons will be required = 2.891×1030

Q: Ultraviolet radiation and radiatioof shorter wavelengths can damage biological molecules because…

A:

Q: X-rays have a wavelength small enough to image individual atoms, but are challenging to detect…

A:

Q: 3) Which of the following has the highest frequency? A) X rays B) UV light C) microwaves 4) Elements…

A: Frequency of a wave is the number of complete waves passing through a point in one second.

Q: A certain shade of blue has a frequency of 7.25 × 1014 Hz. What is the energy of exactly one photon…

A: We know that : E = hv ....(1) E = Energy of photon = ? v = Frequency = 7.25*10^14 Hz and h =…

Q: 6. What is the frequency of light that has a wavelength of a. 4.26 x 10-4 cm?  b. 654 nm? 7. What…

A: Energy of light can be calculated using plank equation  E= h *  ν Where E= energy  Frequency = ν…

Q: Red visible light has a wavelength of 6.5 x 10^-7 m. What is the frequency in s^-1

A:

Q: X-ray radiation falls in the wavelength region of 1.00 × 10-11 to 1.00 × 10-8 meters. What is the…

A:

Q: What is the frequency of radiation whose wavelength is 0.69 nm?

A:

Q: I Review | Constants I Periodic Table Microwave ovens use microwave radiation to heat food. The…

A: The wavelength of a radiation is 12.4 cm.  Convert this wavelength into meters.

Q: The energy of a photon emitted when an electron underwent a transition to n = 4 energy level was…

A: Step 1: The energy of a photon is calculated with the help of following equation: The value of…

Q: X-rays have a wavelength small enough to image individual atoms but are challenging to detect…

A:

Q: At noon on a clear day, sunlight reaches the earth's surface at Madison, Wisconsin, with an average…

A: Energy of the wave is give as : E=nhc/lamda

Q: The energy of a photon emitted when an electron underwent a transition to n = 1 energy level was…

A: The Rydberg equation is given below.

Q: X-rays have a wavelength small enough to image individual atoms, but are challenging to detect…

A: We have to find the frequency of the X-rays. In order to find the frequency we first write down the…

Q: The energy of a photon emitted when an electron underwent a transition to n = 1 energy level was…

A: Given,dE = 1.634×10-18.n =1

Q: Gamma ray radiation falls in the wavelength region of 1.00 x 10-16 to 1.00 x 10-11 meters. What is…

A: Photo-electric Effect: Scientist Einstein discover this effect. According to him, light is composed…

Q: The wavelength of a particular color of red light is 666 nr The frequency of this color is sec! (1…

A: Given, Wavelength = 666 nm  Frequency = ?

Q: A certain shade of blue has a frequency of 7.13×1014 Hz. What is the energy of exactly one photon of…

A:

Q: When copper is bombarded with high-energy electrons, X rays are emitted. Calculate the energy (in…

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

Q: The wavelength of a particular color of red light is 662 nm. The frequency of this color is…

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.