Suppose that the microwave radiation has a wavelength of 12.4 cm . How many photons are required to heat 215 mL of coffee from 25.0 °C to 62.0 ° C? Assume that the coffee has the same density, 0.997 g/mL , and specific heat capacity, 4.184 J/(g · K) , as water over this temperature range. Express the number of photons numerically. > View Available Hint(s)
Suppose that the microwave radiation has a wavelength of 12.4 cm . How many photons are required to heat 215 mL of coffee from 25.0 °C to 62.0 ° C? Assume that the coffee has the same density, 0.997 g/mL , and specific heat capacity, 4.184 J/(g · K) , as water over this temperature range. Express the number of photons numerically. > View Available Hint(s)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter7: Quantum Theory Of The Atom
Section: Chapter Questions
Problem 7.97QP: A particular microwave oven delivers 750 watts. (A watt is a unit of power, which is the joules of...
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Question
Please answer question 4 part A
Transcribed Image Text:Microwave ovens use microwave radiation to heat
food. The microwaves are absorbed by the water
molecules in the food, which is transferred to other
Part A
components of the food. As the water becomes
hotter, so does the food.
Suppose that the microwave radiation has a wavelength of 12.4 cm . How many photons are required to heat 215
mL of coffee from 25.0 °C to 62.0 °C? Assume that the coffee has the same density, 0.997 g/mL , and specific
heat capacity, 4.184 J/(g · K) , as water over this temperature range.
Express the number of photons numerically.
• View Available Hint(s)
?
photons
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