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What is the energy of 1 mol of blue photons at 400 nm wavelength?
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What is the numbers of photons of light with a wavelength of 4000 pm that provide 1 j of energy?
If a certain source emits radiation of a wavelength of 400 nm then the energy in a mole of photons of this radiation can be found using E = hc/w. The energy in kJ/mol of a mole of these photons is approximately 300 kJ / mole.
Which is the relationship between photon energy and the color of light?
Photon energy can be increased by following two methods. 1). by increase in frequency of one photon as (E = hf); where f denotes the frequency of corresponding region. In this case, the electromagnetic region will change to higher frequency region or shorter wavelength region. The photon energy may increase, but not the intensity. 2). secondly increase in the number of photons (n) as E= nhf. If the number of photons of a particular frequency increase, photon energy also increases. In this case, intensity of light of definite frequency (either blue, red etc.) increase simultaneously.
What color of light has photons of greatest energy?
The visible light spectrum ranges from red light (620 nm) to violet light (480nm). Because wavelength is inversely proportional to energy, violet light posseses the most energy while red light possesses the least (as measured in photons).
What is the wavelength of violet color?
Purple is a mixture of the colors red and blue.
What is the frequency for ultraviolet waves?
Ultraviolet radiation has a wavelength between 10 and 400 nanometers. The shorter the wavelength, the more energy each photon contains. To find the frequency, divide the speed of light (299,792,458 metets per second) by the wavelength.
What is the numbers of photons of light with a wavelength of 4000 pm that provide 1 j of energy?
If a certain source emits radiation of a wavelength of 400 nm then the energy in a mole of photons of this radiation can be found using E = hc/w. The energy in kJ/mol of a mole of these photons is approximately 300 kJ / mole.
Transition A produces light with a wavelength of 400 nm Transition B involves twice as much energy as A What wavelenth light does it produce?
Energy per photon is proportional to frequency. That tells us that it's alsoinversely proportional to wavelength.So if Photon-A has wavelength of 400-nm, then wavelength of Photon-Bwith twice as much energy is 200-nm .
Which is the relationship between photon energy and the color of light?
Photon energy can be increased by following two methods. 1). by increase in frequency of one photon as (E = hf); where f denotes the frequency of corresponding region. In this case, the electromagnetic region will change to higher frequency region or shorter wavelength region. The photon energy may increase, but not the intensity. 2). secondly increase in the number of photons (n) as E= nhf. If the number of photons of a particular frequency increase, photon energy also increases. In this case, intensity of light of definite frequency (either blue, red etc.) increase simultaneously.
What color of light has photons of greatest energy?
The visible light spectrum ranges from red light (620 nm) to violet light (480nm). Because wavelength is inversely proportional to energy, violet light posseses the most energy while red light possesses the least (as measured in photons).
What is the wavelength of violet color?
Purple is a mixture of the colors red and blue.
Why there are discontinous spaces between spectrum of hydrogen?
There are spaces in the atomic spectrum of hydrogen because there are discrete energy levels that the electron in the hydrogen atom can be located in. Generally speaking the further away from the nucleus, the higher the potential energy of the electron. When hydrogen gas is excited, the electron can jump up to higher energy levels. When that electron falls back down to a lower energy level, a photon is emitted with an energy equal to the energy difference between the atomic orbital it jumped from and the one it jumped to. Since excited electrons can make a number of different jumps (ex. 4->3, 4->2, 5->3, 5->2, etc) there are a series of photons given off with discrete energies. Each one of these photons has a distinct wavelength (given by the equation E=hf, where E is the energy of the photon, h is planck's constant and f is the frequency of the photon). Each line you see on the spectrum is a photon produced from a different energy jump, with a different wavelength. We are only able to see the photons that emit a wavelength in the visible spectrum (roughly 400-700 nm).
What is the frequency for ultraviolet waves?
Ultraviolet radiation has a wavelength between 10 and 400 nanometers. The shorter the wavelength, the more energy each photon contains. To find the frequency, divide the speed of light (299,792,458 metets per second) by the wavelength.
What is the wavelength of phosphorus?
400-490
Is a candle flame seen because it is luminous?
There are different types of energy. In this case, the energy apart from radiant heat is giving off energy in the visible range, ~400-800 nm wavelength. That's why you can see it.
What is nanometers measure in?
The wavelength of light (400-700).
Which color of visible light has the highest frequency?
blueee!!
What is invisible light energy wih wavelenghts?
Any wavelength shorter than roughly 400 nanometers, and any wavelength longer than roughly 700 nanometers, is invisible. That is, its presence is not detected by the human eye.
