One type of sunburn occurs on exposure to UV light of wavelength in the vicinity of...

Question

Question

One type of sunburn occurs on exposure to UV light of wavelength in the vicinity of...

One type of sunburn occurs on exposure to UV light of wavelength in the vicinity of 305 nm .

(A) What is the energy of a photon of this wavelength?

(B) What is the energy of a mole of these photons?

(C) How many photons are in a 1.20 mJ burst of this radiation?

(D) These UV photons can break chemical bonds in your skin to cause sunburn—a form of radiation damage. If the 305 nm radiation provides exactly the energy to break an average chemical bond in the skin, estimate the average energy of these bonds in kJ/mol.

science chemistry

Add a comment Improve this question Transcribed image text

Answer 1

Answer #1

Stark, Einstein Lawr It stale that each molecule which take part in photocheniscal aon abouts 1 quantum of right which não ce I lay he know energy of a pholon E = hv And we also know speed of light card waulenath = 30 sm. eshie E: 6.626X10-3474 x 3x10

Add a comment

Answer 2

Similar Homework Help Questions

One type of sunburn occurs on exposure to UV light of wavelength in the vicinity of 300 nm . Part A What...

One type of sunburn occurs on exposure to UV light of wavelength in the vicinity of 300 nm . Part A What is the energy of a photon of this wavelength? E = 6.03•1019 J SubmitMy AnswersGive Up Incorrect; Try Again; 4 attempts remaining Part B What is the energy of a mole of these photons? E = J SubmitMy AnswersGive Up Part C How many photons are in a 1.10 mJ burst of this radiation? N = photons SubmitMy...
One type of sunburn occurs on exposure to UV light of wave lengthin the vicinity of 325 nm. a.) What is the energy o...

One type of sunburn occurs on exposure to UV light of wave lengthin the vicinity of 325 nm. a.) What is the energy of a photon of this wavelength? b.) What is the energy of a mole of these photons? c.) How many photons are in 1.00mJ burst of thisradiation? d.) These UV photons can break chemical bonds in you skin tocause sunburn~a form of radiation damage. If the 325 nm radiationprovides exactly the energy to break an average chemical...
One type of sunburn occurs on exposure to UV light of wavelength in the vicinity of 320 nm . They gave me three ques...

One type of sunburn occurs on exposure to UV light of wavelength in the vicinity of 320 nm . They gave me three questions to this and please help me. The first is. What is the energy of one photon of this wavelength in J ? The second is. What is the energy of one mole of these photons in J ? The third is. How many photons are in a 1.00 mJ burst of this radiation in phtons ?...

One type of sunburn occurs on exposure to UV light of wavelength in the vicinity of 300 nm . a)What is the energy of a...

One type of sunburn occurs on exposure to UV light of wavelength in the vicinity of 300 nm . a)What is the energy of a photon of this wavelength? E = 6.62×10−19 J B) What is the energy of a mole of these photons? E = C)How many photons are in a 1.10 mJburst of this radiation? N=_______ photons
One type of sunburn occurs on exposure to UV light of wavelength in the vicinity of 320 nm.nm

One type of sunburn occurs on exposure to UV light of wavelength in the vicinity of 320 .nmHow many photons are in a 1.20mj burst of this radiation?
These UV photons can break chemical bonds in your skin to cause sunburn—a form of radiation damage. If the 320 nm radia...

These UV photons can break chemical bonds in your skin to cause sunburn—a form of radiation damage. If the 320 nm radiation provides exactly the energy to break an average chemical bond in the skin, estimate the average energy of these bonds in kj/mol. Please provide a detail step of your methods. Thank you so very much!!!

Exposure to UVA and UVB light causes skin damage. If UVA light has a wavelength of...

Exposure to UVA and UVB light causes skin damage. If UVA light has a wavelength of 395 nm and UVB has a wavelength of 315 nm. a) What is the energy of one phone of UVA and UVB light? b) what is the energy contained in one mole of UVA and one mole of UVB photons? c) if the average energy required to break a chemical bond is 374 KJ/mol, which light (UVA or UVB) is more likely to be...
The energy of a mole of photons of light in the electromagnetic spectrum decreases logarithmically as...

The energy of a mole of photons of light in the electromagnetic spectrum decreases logarithmically as a function of increasing wavelength. In the visible range, light has between 40 and 80 kcal/mole of photon energy. Below about 400 nm wavelength, the energy increases significantly. Use what you know about the energy of chemical bonds to make an argument in favor of using sun screen with UV-block on a sunny day.
Electromagnetic Waves UV Radiation Some of us are all too familiar with the ill- effects of...

Electromagnetic Waves UV Radiation Some of us are all too familiar with the ill- effects of over-exposure to ultraviolet (UV) electromagnetic radiation, namely, sunburns (solar erythema). UV radiation can kill the skin cells immediately below the surface (part of the epidermal layer). Over the course of several minutes or several hours, as enough skin cells are killed or damaged, the body's natural immune response is triggered. The body responds to the damage with increased blood flow to the capillary bed of...

please answer 1-4 &6 Questions The energy of UV light is 70 kcal/mole at 400 nm...

please answer 1-4 &6 Questions The energy of UV light is 70 kcal/mole at 400 nm and 140 kcal/mole at 200 nm. Why is UV radiation damaging to the eyes and skin? (Hint: Think about the energy required to break a C-C bond.) 2. Which is more energetic: 235 nm or 325 nm light? Explain. 3.) Why is UV spectroscopy used more frequently in organic chemistry than visible spectroscopy? 4. Using the structure of methyl orange as an example, draw...

One type of sunburn occurs on exposure to UV light of wavelength in the vicinity of...

Homework Answers

Add Answer to:
One type of sunburn occurs on exposure to UV light of wavelength in the vicinity of...

Post as a guest

Earn Coins