Microwave ovens use microwave radiation to heat food. The energy of the microves is absorbed by water molecules in the food and then transferred to the rest of the food. Suppose the microwave radiation has a wavelength of 11.2 cm. How many photons are required to heat 2.00  102 mL of coffee from 23 to 60 oC? If the power of the microwave is 9.00  102 W (1 Watt = 1 Joule/second), how long would you have to heat the coffee?

Q: The frequency of the middle B note on a piano is 493.88 Hz.493.88 Hz. What is the wavelength of this…

A: Wavelength: λ = vf  λ  = 343.06 m/s493.88 Hz    = 0.6946 m     = 69.46 cm

Q: Consider light with a wavelength of 5.41 × 101° m. The energy of a single photon of this type of…

A: The number of photons required can be calculated using the energy required to heat the sample and…

Q: Consider light with a wavelength of 5.41 x 10¬1º m. The energy of a single photon of this type of…

A: To solve thia problem we will simply divide the total energy required to heat a cup of water with…

Q: when an excited electron in a hydrogen atom falls from n=5 to n=2, a photon of blue light is…

A: We have  E=2.718 X 10-18 Jz2(nfinal)2-z2(ninitial)2 Here, z=atomic number and n=energy level

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

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Q: Calculate the frequency (in Hertz) and  wavelength (in nanometers) of a photon emitted by a hydrogen…

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

Q: A particular form of electromagnetic radiation has a frequency of 7.06 × 105 Hz. (a) What is the…

A: wavelength of electromagnetic radiation  (λ) = c/f The energy of the electromagnetic radiation…

Q: What is the wavelength of microwave radiation whose frequency is 1.395 x 10 10/s?

A: Given Data:  microwave radiation Frequency = fmw=1.395 x 10 10/s?  Wavelength= ?

Q: power output of a laser is measured by its wattage, the number of joules of energy it radiates per…

A: a. Given, wavelength = 476.2nm Energy of a photon is given by The energy carried by each photon is…

Q: Calculate the frequency of each wavelength of electromagnetic radiation.a. 632.8 nm (wavelength of…

A: Equation that relates wavelength, frequency and speed of light:

Q: an atom when an electron fell from a higher to lower level, the wavelength of the photon emitted was…

A:

Q: A liquid is exposed to infrared radiation with a wavelength of 2.74 x 104 cm. Assume that all the…

A:

Q: 7. Assume a microwave oven operates at a frequency of 6.12 x 1011 s-1. a. What is the wavelength of…

A: See answers in red boxes.

Q: 2) Based on your knowledge of the Electromagnetic Spectrum, what are the differences between…

A: Electrons can behave as a particle as well as wave. The dual nature of electron was explained by De…

Q: The energy density of starlight in interstellar space is 10–15 J/m3. If the average wavelength of…

A: The number of joules per photon is calculated as,

Q: Consider the transition of the electron in the hydrogen atom from n = 4 to n = 9. a) Is ΔE for…

A: a) ΔE for the process positive or negative has to be determined.b) The light will be absorbed or…

Q: A particular form of electromagnetic radiation has a frequency of 4.94 × 101$ Hz. (a) What is the…

A: Consider the given information is as follows; Frequency ν = 4.94×1015 Hz Wavelength λ = ? Region of…

Q: Consider an electron transitioning between two orbits in a hydrogen atom. If the wavelength of the…

A: Given : Wavelength of the energy emitted = 4055 nm Since 1 nm = 10-9 m Hence wavelength of the…

Q: Visible light falls into wavelength ranges of 400-700 nm, for which 1 m =1 × 10º nm. The energy and…

A: Given : Wavelength of photon = 477.8 nm Since 1 nm = 10-9 m Hence wavelength of photon in m = 477.8…

Q: A beam produces light at 5.27 * 10^-7 meters. How many photons of light from this beam would be…

A:

Q: The sky exhibits the color blue due to the scattering of sunlight by air molecules. The blue light…

A: a. Calculating the wavelength (in nm) associated with this radiation; Given;

Q: In Einstein's photoelectric experiment, the kinetic energy (K.E.) of an electron displaced from a…

A:

Q: 3) An electron within a hydrogen atom absorbs a photon and jumps from n =1 to n 4. It then relaxes…

A: NOTE : Since you've asked multiple questions,we'll solve the first question for you.If you want any…

Q: The cone cells of the human eye are sensitive to three wavelength ranges, which the eye interprets…

A:

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: Calculate the wavelength, in nanometers, of light absorbed by an electron in an atom of hydrogen as…

A: Answer:- firstly from the given transition, energy change is calculated then using the relationship…

Q: 1 & 2. One type of sunburn occurs when skin is exposed to UV light of wavelength in the vicinity of…

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Q: A liquid is exposed to infrared radiation with a wavelength of 8.26 x 104 cm. Assume that all the…

A:

Q: A green leaf has a surface area of 2.50 cm2. If solar radiation is 1000 W/m2, how many photons…

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Q: Calculate wavelength and frequency of waves. (a) A local radio station broadcasts at a frequency of…

A: (a) v = 93.6 MHz = 93.6 x 106 Hz λ = ?   (b) λ = 691 nm = 691 x 10-9 m v = ?

Q: Planck's constant h = 6.6256 x 1034 J.sec; speed of light c = 2.9979 x 10° m/s For electromagnetic…

A:

Q: an electron, both particles are disintegrated, and two photons of light are in turn emitted. These…

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Q: In the spectrum of sodium, there is a line with a wavelength of 589 nm. a) What color is this line?…

A: Introduction: For an electromagnetic radiation,…

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

A: Calculation of mass of coffee:

Q: The power output of a laser is measured by its wattage, the number of joules of energy it radiates…

A: a) Since the relationship between energy and wavelength is  E = hc / λ where E = energy of photon  h…

Q: A particular form of electromagnetic radiation has a frequency of 7.60×10^14Hz. a)What is its…

A: Use the formula of energy , frequency, wavelength of a electromagnetic wave.

Q: What is the wavelength in NANOmeters of light that has an energy per photon of 5.36 x 10^19 J?

A:

Q: Visible light falls into wavelength ranges of 400-700 nm, for which 1 m = 1 x 10° nm. The energy and…

A: Given: The wavelength of the visible light photon, λ = 447.3 nm = 447.3×10-9 m Planck's constant, h…

Q: The blue color of the sky results from the scattering of sunlight by air molecules. The blue light…

A:

Q: The electron in a hydrogen atom moves from level n=3 to level n=5. Is the photon emitted or…

A: The energy levels to be n = 3 and n = 5.  Rydberg's equation will allow you calculate the wavelength…

Q: Sodium vapor lamps are used to illuminate streets and highways. The very bright light emitted by…

A: A question based on unit conversion, which is to be accomplished.

Q: Convert between number of photons and energy given a particular wavelength. Low level light therapy…

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Q: The minimum energy required to remove an electron from a certain metal is 3.7 x 10– 19 J. If the…

A: Given,  The minimum energy required to remove an electron from a certain metal is 3.7 x 10-19 J Work…

Q: The blue color of the sky results from the scattering of sunlight by molecules in the air. The blue…

A: Wavelength is given by Wavelength = speed of light/frequency  And energy is given by  Energy = h×…

Q: What frequency of electromagnetic radiation is associated with a wavelength of 100.5 nm? In what…

A: Given, the wavelength of electromagnetic radiation λ =100.5 nmwe are asked to calculate the…

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

A: Photon is the package of light. Energy of photon is determine by using formula. E=hcλE=hv.E is…

Q: A hydrogen atom radiates a photon as it falls from a 2p level to the 1s level. The wavelength (in…

A:

Q: which has a threshold energy of 7.43 × 10⁻¹⁹ J, and ultraviolet light of wavelength 45.5 nm, what…

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.