Heating 235 g of water from 22.6°C to 94.4°C in a microwave oven requires 7.06 × 1 0 4 J of energy. If the microwave frequency is 2.88 × 1 0 10 s -1 , how many quanta are required to supply the 7.06 × 1 0 4 J?

Q: AM radio stations broadcast at frequencies between 530 kHz and 1700 kHz. ( 1 kHz = 10°/s.) For a…

A: The explanation is given below-

Q: A stellar object is emitting radiation at 1770 nm. A detector is capturing 9  107 photons per second…

A: Given: Wavelength = 1770 nm number of photons = 9*107 photons per second. h = 6.63 x 10-34 J-s. c =…

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: 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: What is the frequency of a photon that has an energy of 4.57 x 10-19 j? 5.61 x 1014 s-1 8.90 x 1014…

A:

Q: How much energy is released from a hydrogen atom when an electron moves from ni= 2 to nf = 4? Where…

A: Bohr developed a rule for quantization of energy that could be applicable to the electron of an atom…

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: A radar wave has a frequency of 3.35 x 10^8 Hz. What is the energy in kJ/mol of this radar wave?

A:

Q: 3. A radio wave has a frequency of 3.8 x 1010 Hz. What is the energy (in J) of one photon of this…

A: Answer

Q: For a beam of a light with a wavelength of 529 nm calculate the energy in kJ for 6 × 1023 of…

A:

Q: What is the wavelength of radiation that has a frequency of 5.8×1011 s −1?

A: Given, Frequency = 5.8*1011 s-1  Wavelength = ?

Q: What is the frequency of radiation whose wavelength is 319 nm?

A: Given: Wavelength = 319 nm c = 2.998 x 108 m/s. h = 6.63 x 10-34 J-s.  To calculate :- frequency of…

Q: A highly excited atom of hydrogen makes a transition from the n = 10 to the n = 9 state and emits a…

A: First, the wavelength value is meters is determined by using following equation,

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: What is the wavelength (in nanometers) of electromagnetic radiation that has an energy of 4.25…

A:

Q: 1.2336 eV of energy is absorbed when an electron transits from the lower energy level corresponding…

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: 7. Consider the following transitions 1.n 5 3 to n 5 1 2. n 5 2 to n 5 3 3. n 5 4 to n 5 3 4. n 5 3…

A:

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

A:

Q: In Einstein's photoelectric experiment, the kinetic energy of an electron displaced from a metal by…

A: According to Einstein's photo electric effect  E= hcλ=wo+ KE  E= Energy of incident light  h= planks…

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: hat is the energy of a photon with a frequency of 5.70 × 10¹⁴ s⁻¹? (h = 6.626 × 10⁻³⁴ J • s)

A: To determine the energy of the photon with the frequency given below. ν = 5.70 × 10¹⁴ s⁻¹…

Q: the microwaves in an oven are of a specific frequency that will heat the water molecules contained…

A: Given information: Frequency = 3×109 Hz

Q: What is the energy of a photon with a frequency of 5.50 × 10¹⁴ s⁻¹? (h = 6.626 × 10⁻³⁴ J • s)

A:

Q: (a) A hydrogen atom goes from the n = 5 state to the n = 2 state. Is this an absorption or an…

A: Transition from one state to another state is possible by absorption or emission of energy.

Q: Often, wireless networks called WiFi are used to transmit information from your electronic device to…

A:

Q: What is the energy (in J) of a photon with a frequency of 7.37 x 1014 s-1? (h = 6.626 x 10-34 J• s)

A: The energy of photon can be calculated by using following relation between energy and frequency of…

Q: 16. Determine the energy in kj/mole of light with a wavelength of 330 nanometers. C= 3 x 10%…

A: Provided value of (C)=3×108 meters/second Provided value of Planck's contant…

Q: An electron in a hydrogen atom travels from energy level n = 2 to energy level n = 3.   Would the…

A: According to Bohr's Equation  ∆E=-RH(1nf2-1ni2)RH = Rydberg constant

Q: x 10^3 kHz, what is the energy of this radio wave? Note that plancks constant is 6.63 x 10

A: Given: Radio Wave Frequency (v) = 1.53 x 103 Hz Plank's Constant (h) = 6.63x 10-34 J-s

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: Be sure to answer all parts.   What is the energy (in J) of one photon of 833 nm wavelength light?…

A: Given, Wavelength of light is 833 nm.

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

A: Calculation of mass of coffee:

Q: Radiation of wavelength 4.75x10-7 m has an associated energy of     4.18 x10-19 J     1.99…

A: Given :-  wavelength of the radiation (λ) = 4.75x10-7 m Energy of the radiation (E) = ?

Q: Consider light with a wavelength of 3.83 x 10-10 m. The energy of a single photon of this type of…

A:

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: 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: Q32. Bioluminescence is the generation of light by an organism (e.g. what a firefly does). Applying…

A: The phenomenon of Bioluminescence is depends on the light production from the chemical reactions…

Q: What is the frequency of a photon if the energy is 7.63 x 1019 J? (h = 6.626 × 1034 J • s)

A:

Q: What is the energy (in J) of a photon with a frequency of 7.23 × 10¹⁴ s⁻¹? (h = 6.626 × 10⁻³⁴ J • s)

A:

Q: A certain microwave oven delivers 750. watts (J/s) of power to a coffee cup containing 100.0 g water…

A:

Q: What is the energy (in J) of a photon with a frequency of 7.07 × 10¹⁴ s⁻¹? (h = 6.626 × 10⁻³⁴ J • s)

A:

Q: What is the value of this constant, in units of J s? Photon Energy: 4.51 × 10-19 J Frequency: 6.79 ×…

A:

Q: The eyes of certain reptiles pass a single visual signal to the brain when the visual receptors are…

A: The energy (E) associated with a photon of light having wavelength λ is given by the formula  E =…

Q: A highly excited atom of hydrogen makes a transition from the n = 14 to the n = 13 state and emits a…

A: Given:ni = 14nf = 13

Q: Calculate the energy (in Joules) of a single photon of blue light with a frequency of 7.50 × 10¹⁴…

A:

Q: What is the frequency of a photon if the energy is 7.05 × 10⁻¹⁹ J? (h = 6.626 × 10⁻³⁴ J • s)

A: We know the relation between energy (E) and frequency (v), which is---- E = hv Where E = energy, h =…

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.