photons

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter5: Electron Configurations And The Periodic Table
Section: Chapter Questions
Problem 120QRT
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A certain microwave oven delivers 750 watts (J/s) of power to a coffee cup containing 69.9 g of water at 18.4°C. If the wavelength of microwaves in the oven is 9.75 cm, how long does it take, and how many photons must be absorbed, to make the water boil? The specific heat capacity of water is 4.18 J/°C·g and assume only the water absorbs the energy of the microwaves.

[Text box for seconds] s

[Text box for photons] photons
Transcribed Image Text:A certain microwave oven delivers 750 watts (J/s) of power to a coffee cup containing 69.9 g of water at 18.4°C. If the wavelength of microwaves in the oven is 9.75 cm, how long does it take, and how many photons must be absorbed, to make the water boil? The specific heat capacity of water is 4.18 J/°C·g and assume only the water absorbs the energy of the microwaves. [Text box for seconds] s [Text box for photons] photons
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