Scientists are studying ways to improve the efficiency of solar cells by studying a process called photon upconversion. In this process, the energy of two photons can become combined to form a new photon with an energy equal to the sum of the two combined photons. With this process, abundant infrared radiation can be converted into visible light that can be used by solar cells to produce electricity. Suppose an infrared photon with a wavelength of 853 nm were combined with another infrared photon with a wavelength of 835 nm, what would be the wavelength of the new 'combined' photon, in nm?

Q: It requires a minimum of 216.4 kJ/mol to remove an electron from a potassium metal surface. If UV…

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Q: It takes  839./kJmol  to break a carbon-carbon triple bond. Calculate the maximum wavelength of…

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Q: a bulb emitts light of wavelength of 5000 armstrong . bulb is rated as 250 watt and 20% energy is…

A: The energy of each photon is calculated as,

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: 5. Why is the wave of a moving car not detectable to the naked eye?

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Q: An excited H atom with the electron in energy level 6 emits a photon of wavelength  2626 nm.   What…

A: Step:1   De-excitation  of electron:-   1λ=R1nf2-1ni2where λ=wavelength            R=1.097×107 m-1…

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

A: The energy is calculated from the equation where energy is directly proportional to the…

Q: A ground state hydrogen atom absorbs a photon of light having a wavelength of 94.92 nm. It then…

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Q: Use the Rydberg equation to find the wavelength (in Å) of the photon absorbed when an H atom…

A: Given details, ninitial = 1nfinal = 3 To find out the wavelength.

Q: Determine the energy of a photon with a 678.0 nm wavelength.  I asked this question before the…

A: The wavelength of the photon is = 687.0 nm The energy of the photon is =?

Q: What is energy? Explain the difference between kinetic energy andpotential energy.

A: Energy in science is the capacity to work.  Energy can neither be created nor be destroyed but can…

Q: The laser pointer emits light because electrons in the material are excited (by a battery) from…

A: The energy difference between the two states is same as the energy of the photon released on return…

Q: During relaxation, an electron emits a photon with a wavelength of 425nm. Assuming the electron was…

A: Solution :      Relaxation of an electron is when an electron falls back from a higher energy state…

Q: Scientists are studying ways to improve the efficiency of solar cells by studying a process called…

A: Photons are electrically neutral Photons have no mass, but they have energy E=hυ …………… (1) Where E=…

Q: Microwave ovens emit microwave energy with a wavelength of 12.8 cm.12.8 cm. What is the energy of…

A: Relation between energy and wavelength of a photon…

Q: Determine the end value of n in a hydrogen atom transition, if the electron starts in n=3 and the…

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Q: Explain what it means for an atom to absorb a photon of a particular color and emit a photon of a…

A: (a) When an atom absorbs a photon, in the form of energy, the electrons of that atom gets excited…

Q: The red lasers used to read the barcodes of products at the grocery stores produce light with a…

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Q: What are complementary properties? How does electron diffraction demonstrate the complementarity of…

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Q: Once her light saber is working perfectly, Yolanda gets to work on her back up light saber which…

A: Given : Mass of light saber = 3200 g = 3.200 Kg…

Q: The photons of incident light can cause electrons from metals to be released and is known as the…

A: Given that, the minimum frequency for the emission of photo-electrons from sodium is 43.9 x 1013 Hz.…

Q: Due to the small size of the subatomic particles, the only way scientists learned to probe themis to…

A: Given: The speed of the electron = 3.46 × 103 Km/s = 3.46 × 106 m/s. And the error in the speed =…

Q: Determine the energy of a photon with a wavelength of 364 nm.

A: Given the wavelength of photon, λ = 364 nm We have to find the energy(E) of the photon.

Q: takes  155./kJmol  to break a fluorine-fluorine single bond. Calculate the maximum wavelength of…

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Q: The watt is a unit of power, equivalent to 1 joule per second. If a single solar panel can generate…

A: Solar panel power generated = 125 watts 1 watt = 1 J/sec Energy generated = 125 J/sec

Q: Niels Bohr developed equations to explain atomic structure. my case study should use one of his…

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Q: An electron within the hydrogen atom "falls" from energy level 9 to energy level 2. Using the…

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Q: Is it correct that all photons of the same frequency have the same energy?

A: Yes, all photons having same frequency would have same energy.The energy of photons is different…

Q: It takes 614./kJmol to break a carbon-carbon double bond. Calculate the maximum wavelength of light…

A: Given: The amount of energy required to break a carbon-carbon double bond = 614 kJ/mol We have to…

Q: The de Broglie wavelength of a ________ will have the shortest wavelength when traveling at 30 cm/s

A: According to the de Broglie wavelength λ=hp λ=wavelength h = planks constant p = momentum   we know…

Q: A 337 nm nitrogen laser puts out 2.00 W of power with a beam 5.40 mm in diameter. The beam is…

A: Given information, Wavelength of nitrogen laser = 337 nm = 337*10-9 m  Power = 2.00 W Diameter of…

Q: Laser eye surgery utilizes ultraviolet radiation with a wavelength around 191 nm. What is the…

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Q: It is possible to convert radiant energy into electrical energyusing photovoltaic cells. Assuming…

A: The wavelength of UV radiation and IR radiation is 100-400 nm and wavelength of IR is 780 nm -1mm…

Q: The lasher used to read Blu-Ray disc have a wavelength of 405 nm photons have an energy of _____ J,…

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Q: What is the total amount of energy (in units of kJ) for 1.446 moles of 666.02 nm wavelength photons?

A: Recall the relationship between a

Q: frequency

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Q: What is the energy of one mole of photons from a photon with a wavelenght of 327nm?

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Q: The laser has a light with a wavelength of (8.07x10^2)nm.  Calculate the frequency of this light.

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Q: Microwave ovens emit microwave energy with a wave length of 18.9cm. What is the one energy of…

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Q: Calculate the energy of a photon in units of kJ/mol when it is emitted with a wavelength of 97.2nm.

A: The energy of a photon = hv The energy of 1 mole of photon = hv * NA Where, h is planks…

Q: A photon with a wavelength of 162.7 nm was used to induce the photoelectric effect. If the work…

A: Wavelength of photon = 162.7 nm Work function of metal = 6.49 eV

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

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

Q: Be sure to answer all parts How fast must a 143.9−g baseball travel in order to have a de Broglie…

A: Given data,  Mass of baseball = 143.9 g  de Broglie wavelength = 75.0 pm

Q: Microwave ovens emit microwave energy with a wavelength of 12.3 cm. What is the energy of exactly…

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Q: Use Einstein's photoelectric equation to explain the laws of photoelectric effect. Electrons are…

A: The photoelectric effect is a phenomenon in which electrically charged particles are related to a…

Q: Calculate the photon energy (in kJ/mol) for the single Li emission and the two Na emission…

A: Introduction :  Photon energy can be defined as the unit excitation of the electromagnetic field,…

Q: Electrons in potassium ions (excited by heating in a flame) emit visible light whose wavelength is…

A: Wavelength of the light = 409 nm Now we have to calculate frequency, the energy of one quantum of…

Q: Express the speed of the electron in the Bohr model in terms of the fundamental constants (me, e, h,…

A: According to Bohr’s theory, velocity of an electron in the nth orbit for hydrogen like system is…

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.