Hey, i need these ASAP...please help...thanks!!!
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A 321 g sample of water absorbs infrared radiation at 1.06 X 10^4 nm from a carbon dioxide laser. Suppose all the absorbed radiation is converted to heat. Calculate the number of photons at this wavelength required to raise the temperature of the water by 5.00°C.
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AND
***********How many photons at 660 nm must be absorbed to melt 4.0 X 10^2 g of ice? (Hint: It takes 334 J to melt 1 g of ice at 0°C.)
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On average, how many H2O molecules does one photon convert from ice to water?
2006-11-13 14:56:28 · 2 answers · asked by Hadeer S 1 in Science & Mathematics ➔ Physics
No offense, but try putting this question in the Homework Help category. I prefer to think this category is more for explanations about stuff designed to help one understand how they can arrive at an answer instead of just giving them the answer outright.
2006-11-13 15:00:28 · answer #1 · answered by quntmphys238 6 · 0⤊ 0⤋
E = h/lambda
2006-11-13 14:58:47 · answer #2 · answered by arbiter007 6 · 0⤊ 0⤋