Problem Set 6 Key CHEM103A Dr. Keller

Problem Set 6 Key CHEM103A Dr. Keller - CHEMISTRY 103A,...

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(325 )(4.184 / )(95.0 24.0) 96.5 o o q g J g C C kJ = - = λ ν = = × × = c m s s m 300 10 2 45 10 0122 8 9 . / . / . E h Js s J = = × × = × - - - ( . )( . ) . 6 63 10 2 45 10 162 10 34 9 1 24 3 28 24 96.5 10 5.96 10 1.62 10 J N J - × = = × × CHEMISTRY 103A, Sections 7-10 Problem Set 6: 13 Points Answer Key Problems 1a-1g. (seven points) Much of these problems centers on the quantity of heat q absorbed by 325 mL of water (roughly one cup) when it warms from 24.0 C to 95.0 C. As you undoubtedly are aware, the specific heat of water is 4.184 J/g C. Other parts of this problem involve the electromagnetic radiation produced by a microwave oven like the one mom has at home. Such ovens produce electromagnetic radiation at a frequency of 2.45 GHz. Problem 1a. Calculate the amount of heat (in kJ) absorbed by the water for the stated temperature change Problem 1b. Calculate the wavelength in meters of a photon produced by the microwave oven. [For your information only, does this wavelength fit inside a typical microwave oven?]
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This homework help was uploaded on 04/14/2008 for the course CHEM 103a taught by Professor Weso during the Fall '08 term at University of Arizona- Tucson.

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Problem Set 6 Key CHEM103A Dr. Keller - CHEMISTRY 103A,...

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